Month: July 2024

Environmentally friendly substitute for dioctyltin oxide

Di-n-octyltin oxide (DOTO) is widely used in polyurethane, polycarbonate and other materials due to its efficient catalytic properties. It is widely used in the field of organic synthesis. However, in recent years, the international use of dioctyltin oxide has been increasingly restricted due to its potential bioaccumulation and potential toxicity to the environment and human health, especially its effects on the reproductive system. The EU REACH regulations and other international standards have set strict restrictions on its use. Therefore, finding environmentally friendly alternatives to dioctyltin oxide has become an urgent need in the industry.

Criteria for selecting alternatives

Ideal environmentally friendly alternatives should have the following properties:

  • Efficient catalytic activity: It can effectively catalyze related chemical reactions to ensure production efficiency.
  • Low-toxic or non-toxic: Little impact on human health and the ecological environment.
  • Biodegradability: Ability to break down in the natural environment, reducing long-term cumulative risks.
  • Cost-effectiveness: Compared with dioctyltin oxide, it has equivalent or better economic benefits.
  • Stability: Remains stable during storage and use and is not prone to deterioration.

Examples of environmentally friendly alternatives

1. Organobismuth compounds

Organobismuth compounds (such as tributylbismuth oxide) as catalysts have been considered as effective alternatives to dioctyltin oxide due to their low bioaccumulation potential and relatively low toxicity. They show good catalytic activity in the synthesis of polyurethanes and polycarbonates, and in some applications the catalytic efficiency is even higher than that of dioctyltin oxide.

2. Zinc Compounds

Zinc compounds, such as zinc acetate, are also being explored as environmentally friendly catalysts. Although their catalytic efficiency may be slightly lower than that of dioctyltin oxide, zinc compounds can still meet the needs of industrial production by optimizing reaction conditions and catalyst formulations.

3. Titanate Catalyst

Titanate catalysts, such as titanium tetrabutoxide, have high catalytic activity and good thermal stability. They have proven effective in the manufacture of polyurethane foam while reducing negative environmental impact.

4. Organic Amine Catalyst

Organic amine catalysts, such as dimethylcyclohexylamine, have gradually become alternatives to dioctyltin oxide due to their high selectivity and environmental friendliness. They can effectively promote the reaction between isocyanates and polyols in polyurethane synthesis and have less impact on the environment.

5. Solid Acid Catalyst

Solid acid catalysts, such as zeolites, silica-supported metal oxides, are being developed for various organic synthesis reactions, including the synthesis of polyurethanes, due to their high catalytic activity, recyclability, and environmental compatibility.

Research and Development

Although several environmentally friendly alternatives have been discovered and are beginning to be used in industry, the search for more efficient and environmentally friendly catalysts remains an active area of ​​research. Advances in new materials science and green chemistry are expected to bring about new breakthroughs. For example, new catalysts prepared through nanotechnology or biocatalysts developed through bioengineering methods may become alternatives to dioctyltin oxide in the future.

Conclusion

With the increasing global awareness of environmental protection, research on alternatives to dioctyltin oxide has become an important topic in the fields of chemistry and materials science. Organic bismuth compounds, zinc compounds, titanate catalysts, organic amine catalysts and solid acid catalysts are currently relatively mature environmentally friendly alternatives. In the future, as scientific researchers continue to explore new catalysts, we are expected to see more efficient and environmentally friendly catalysts used in industrial production, contributing to the promotion of green chemistry and sustainable development. Continuous innovation in this field not only helps reduce pressure on the environment, but also promotes the transformation of the chemical industry into a more environmentally friendly and healthy direction.

Extended reading:

CAS:2212-32-0 – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co., LTD

N,N-Dicyclohexylmethylamine – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co ., LTD

bismuth neodecanoate/CAS 251-964-6 – Amine Catalysts (newtopchem.com)

stannous neodecanoate catalysts – Amine Catalysts (newtopchem.com)

polyurethane tertiary amine catalyst/Dabco 2039 catalyst – Amine Catalysts (newtopchem.com)

DMCHA – morpholine

N-Methylmorpholine – morpholine

Polycat 41 catalyst CAS10294-43-5 Evonik Germany – BDMAEE

Polycat DBU catalyst CAS6674-22-2 Evonik Germany – BDMAEE

Dioctyltin oxide MSDS data sheet

The MSDS (Material Safety Data Sheet) of Di-n-octyltin oxide (DOTO) is An important document that provides users with information on the health, safety, fire protection, transportation and emergency response of chemicals. Below, we will outline the key MSDS information of dioctyltin oxide based on the structure of the general MSDS. It should be noted that the actual MSDS may vary depending on suppliers and regions.

Part One: Chemicals and Corporate Identification

Chinese name of chemical: dioctyltin oxide
English name of chemical: Di-n-octyltin oxide
CAS No.：870-08-6
EINECS No.：212-791-1
Molecular formula: C16H34OSn
Molecular weight: about 361.15 g/mol

Part 2: Risk Overview

Dioctyltin oxide is a toxic chemical that may cause harm to the human body if swallowed, inhaled or in contact with the skin. Direct contact with eyes, skin and clothing should be avoided, and inhalation of vapor or dust should be avoided.

Part 3: Composition/Information Components

Main ingredient: dioctyltin oxide
Impurities: May contain trace amounts of unspecified impurities
Concentration: Purity can reach 99%

Part 4: First Aid Measures

Inhalation: Move quickly to fresh air and keep breathing smoothly. If you feel unwell, seek medical attention immediately.
Skin contact: Take off contaminated clothing immediately and rinse skin with plenty of water for at least 15 minutes. If irritation persists, seek medical attention.
Eye contact: Open your eyelids immediately, rinse with running water for at least 15 minutes, and then seek medical advice.
Swallowing: Do not induce vomiting. Rinse mouth with water immediately. Do not drink large amounts of water. Get medical attention immediately.

Part 5: Firefighting Measures

Fire-fighting methods and fire-extinguishing media: Use dry powder, carbon dioxide or foam fire extinguishers.
Fire Fighting Precautions: Wear appropriate personal protective equipment and avoid breathing fumes from combustion.

Part Six: Emergency Response to Spills

Emergency Action: Wear appropriate personal protective equipment and avoid direct contact with spilled material. Use appropriate tools to collect leakage, place in a sealed container, and dispose in accordance with local regulations.

Part 7: Handling and Storage

Operating Precautions: Operate in a well-ventilated area and avoid inhaling steam or dust. Use appropriate gloves, glasses and work clothes.
Storage Precautions: Store in a cool, dry, well-ventilated place, away from sources of fire and incompatible substances. Keep sealed.

Part 8: Exposure Controls/Personal Protection

Engineering controls: Use local exhaust or general ventilation.
Respiratory protection: Wear a dust mask when necessary.
Eye Protection: Use chemical safety glasses or a face shield.
Body protection: Wear protective clothing.
Hand protection: Wear suitable chemical-resistant gloves.

Part 9: Physical and chemical properties

Appearance and properties: white to yellow powder
pH: Not applicable
Boiling Point: Not applicable
Melting point: about 45-48°C
Solubility: Insoluble in water, soluble in some organic solvents

Part 10: Stability and Reactivity

Stability: Stable under normal conditions of storage and use.
Conditions to avoid: Strong oxidizing agents, acids, water.
Hazardous Decomposition Products: May produce toxic gases including tin oxide and carbon monoxide when burned.

Part 11: Toxicological Information

Acute toxicity: LD50 (oral in mice) may exceed 2000 mg/kg
Irritation: Mild to moderate irritation to eyes, skin and respiratory tract
Sensitization: None reported
Mutagenicity: None reported
Carcinogenicity: Not classified by IARC
Reproductive toxicity: None reported

Part 12: Ecological Information

Ecotoxicity: Toxic to aquatic life
Biodegradability: Not easily biodegradable
Non-biodegradability: Photolysis and chemical degradation may be limited

Part 13: Disposal

Dispose in accordance with local environmental regulations to avoid environmental pollution.

Part 14: Shipping Information

United Nations Number：UN No.
Packaging category: III
Dangerous Goods Number: Not applicable
Packaging Mark: Toxic

Part 15: Regulatory Information

Comply with all applicable national and international regulations.

Part 16: Other information

References: Relevant regulations, standards and research literature
Revision Date: The most recent revisionDate
Manufacturer/Supplier Information: Company name, address, phone number, and email

Please note that the above information is a general description, and the specific MSDS should contain detailed chemical safety information and new regulatory requirements. Always refer to the new MSDS document and follow all safety guidelines when handling dioctyltin oxide.

Extended reading:

CAS:2212-32-0 – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co., LTD

N,N-Dicyclohexylmethylamine – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co ., LTD

bismuth neodecanoate/CAS 251-964-6 – Amine Catalysts (newtopchem.com)

stannous neodecanoate catalysts – Amine Catalysts (newtopchem.com)

polyurethane tertiary amine catalyst/Dabco 2039 catalyst – Amine Catalysts (newtopchem.com)

DMCHA – morpholine

N-Methylmorpholine – morpholine

Polycat 41 catalyst CAS10294-43-5 Evonik Germany – BDMAEE

Polycat DBU catalyst CAS6674-22-2 Evonik Germany – BDMAEE

Dioctyltin oxide catalyst application

Dioctyltin oxide (chemical formula: C16H34OSn), usually abbreviated as DOTO, is an important organotin compound used as a chemical compound in the chemical industry. Efficient catalysts are widely used. It is known for its good catalytic activity, selectivity and stability, and plays a key role in polymer chemistry, esterification reactions and transesterification reactions.

Applications in polymer chemistry

In the field of polymer chemistry, dioctyltin oxide is particularly suitable for catalyzing the synthesis of polyesters. For example, in the synthesis process of polybutylene terephthalate (PBT), dioctyltin oxide can effectively accelerate the esterification reaction and improve the yield and quality of the polymer. Additionally, due to its lower toxicity compared to other organotin catalysts such as dibutyltin oxide, dioctyltin oxide becomes a more environmentally friendly choice, especially in applications where catalyst residues are strictly limited.

Production of PVC heat stabilizer

Dioctyltin oxide also plays an important role in the production of PVC (polyvinyl chloride) heat stabilizers. PVC easily decomposes at high temperatures, and adding heat stabilizers can prevent this decomposition and maintain the performance of PVC. As a catalyst, dioctyltin oxide can promote the effective synthesis of heat stabilizers, thus improving the quality and service life of PVC products.

Paint and coating industry

In the paint and coatings industry, dioctyltin oxide is used to enhance the properties of coatings. It can participate in the curing process of the coating as a catalyst, speed up the drying speed of the coating, and improve the hardness and weather resistance of the coating. This makes dioctyltin oxide one of the important additives for the production of high-performance paints and coatings.

ester exchange reaction

The transesterification reaction is crucial in the production of biodiesel, and dioctyltin oxide, as an efficient catalyst, can significantly increase the reaction rate and yield. In the transesterification reaction, vegetable oil or animal fat reacts with alcohol to generate biodiesel. The presence of dioctyltin oxide can effectively lower the reaction temperature, reduce the formation of by-products, and improve the purity of biodiesel.

Antioxidant production

In the production of antioxidants, dioctyltin oxide can also be used as a catalyst. Antioxidants are used to protect various materials from oxidative degradation and are widely used in plastics, rubber, lubricants and other fields. By using dioctyltin oxide as a catalyst, the synthesis efficiency of antioxidants can be improved and product quality can be ensured.

Conclusion

In summary, dioctyltin oxide has demonstrated outstanding performance in many fields of the chemical industry with its unique chemical properties and catalytic properties. Excellent application value. Whether facilitating polymer synthesis or increasing the efficiency of production of paints, coatings, biodiesel and antioxidants, dioctyltin oxide has proven itself to be an indispensable catalytic tool. With the advancement of science and technology and the improvement of environmental awareness, we are expected to see more innovative application scenarios in the future, allowing dioctyltin oxide to play a greater role in green chemistry and sustainable development.

Extended reading:

CAS:2212-32-0 – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co., LTD

N,N-Dicyclohexylmethylamine – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co ., LTD

bismuth neodecanoate/CAS 251-964-6 – Amine Catalysts (newtopchem.com)

stannous neodecanoate catalysts – Amine Catalysts (newtopchem.com)

polyurethane tertiary amine catalyst/Dabco 2039 catalyst – Amine Catalysts (newtopchem.com)

DMCHA – morpholine

N-Methylmorpholine – morpholine

Polycat 41 catalyst CAS10294-43-5 Evonik Germany – BDMAEE

Polycat DBU catalyst CAS6674-22-2 Evonik Germany – BDMAEE

The role of dioctyltin oxide in organic synthesis

Di-n-octyltin oxide (DOTO), chemical formula C16H34OSn, is an organotin compound used in organic synthesis He plays a variety of roles, especially in the field of catalysis, showing his unique advantages. As a class of metal-organic catalysts, dioctyltin oxide is favored for its high catalytic activity, good selectivity, and relatively low toxicity. The application and mechanism of dioctyltin oxide in organic synthesis will be discussed in detail below.

Catalysis

Esterification reaction

In organic synthesis, esterification reaction is one of the basic ways to construct ester compounds and is widely used in pharmaceutical synthesis, polymer manufacturing, perfume production and other fields. As a catalyst, dioctyltin oxide can significantly accelerate the esterification reaction between carboxylic acids and alcohols, improving yield and selectivity. Compared with traditional sulfuric acid or solid acid catalysts, dioctyltin oxide not only reduces the occurrence of side reactions, but also reduces the complexity of post-treatment, making it has obvious economic and environmental benefits in industrial production.

Polymerization reaction

For the synthesis of polyesters, especially the production of polyterephthalates (such as polyethylene terephthalate PET and polybutylene terephthalate PBT), dioctyltin oxide Demonstrate efficient catalytic ability. In these polymerization reactions, it can effectively promote the esterification and polycondensation steps, shorten the reaction time and increase the molecular weight of the polymer, thereby improving the physical and chemical properties of the product.

ester exchange reaction

In the production process of biodiesel, transesterification is a key step in converting vegetable oils or animal fats into fatty acid methyl esters. As a catalyst, dioctyltin oxide can reduce the reaction activation energy, improve conversion rate and selectivity, and at the same time reduce the impact on the environment, which is in line with the principles of green chemistry.

Reaction mechanism

During the catalytic process of dioctyltin oxide, the tin atom in the active center can form a coordination complex with the reactant, changing the electron cloud distribution of the reactant, thereby reducing the activation energy of the reaction and promoting the reaction. In esterification and transesterification reactions, dioctyltin oxide may form a transition state through interaction with alcoholic hydroxyl groups or carboxylic acid functional groups, accelerating the formation or breakage of ester bonds. In polymerization reactions, it may control the growth direction and length of the polymer chain through interaction with monomers or growing chain ends.

Environmental and health considerations

Although the application of dioctyltin oxide in organic synthesis provides many advantages, its potential ecotoxicity and human health risks cannot be ignored. As a class of organotin compounds, it may have adverse effects on aquatic ecosystems and is somewhat toxic to humans at high doses. Therefore, when using dioctyltin oxide as a catalyst, appropriate protective measures need to be taken to ensure its safe and environmentally friendly use.

Conclusion

The role of dioctyltin oxide in organic synthesis reflects its potential as an efficient catalyst, especially in esterification, polymerization and transesterification Waiting for key reactions. However, with the popularization of the concept of green chemistry, developing safer and more environmentally friendly catalyst systems and optimizing the use conditions of existing catalysts to reduce potential impacts on the environment and health are still important challenges faced by chemists. The research and application of dioctyltin oxide will continue to drive progress in the field of organic synthesis, while also prompting scientists to explore more sustainable chemical solutions.

Extended reading:

CAS:2212-32-0 – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co., LTD

N,N-Dicyclohexylmethylamine – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co ., LTD

bismuth neodecanoate/CAS 251-964-6 – Amine Catalysts (newtopchem.com)

stannous neodecanoate catalysts – Amine Catalysts (newtopchem.com)

polyurethane tertiary amine catalyst/Dabco 2039 catalyst – Amine Catalysts (newtopchem.com)

DMCHA – morpholine

N-Methylmorpholine – morpholine

Polycat 41 catalyst CAS10294-43-5 Evonik Germany – BDMAEE

Polycat DBU catalyst CAS6674-22-2 Evonik Germany – BDMAEE

The role of dioctyltin oxide in the plastics industry

Di-n-octyltin oxide (DOTO) plays a vital role in the plastics industry, especially in During the processing and stabilization of polyvinyl chloride (PVC). As a highly efficient organotin compound, it not only provides excellent thermal stability and processing performance, but also improves the physical and chemical properties of the product to a certain extent. The following are several key roles of dioctyltin oxide in the plastics industry, especially in the production of PVC products:

Heat stabilizer

PVC is prone to dehydrochlorination under heating conditions, leading to chain breakage and yellowing, seriously affecting its mechanical properties and appearance. As a thermal stabilizer, dioctyltin oxide can capture the released HCl and prevent it from further catalyzing the degradation reaction, thereby inhibiting the thermal degradation process of PVC. By providing a stable environment, it avoids further attack by HCl on the PVC molecular chain, extending the service life of the product and maintaining the transparency of the product.

Chain transfer agent

In addition to thermal stabilization, dioctyltin oxide also acts as a chain transfer agent. During the polymerization and processing of PVC, it can regulate the growth of the polymer chain, reduce the formation of unstable ends through chain transfer, thereby improving the fluidity of PVC, making the processing process smoother, and also helping to control the polymer properties. molecular weight distribution to optimize product performance.

Antioxidants

Dioctyltin oxide also shows certain antioxidant properties, which can resist the attack of hot oxygen and ultraviolet rays on PVC to a certain extent, improving the weather resistance and anti-aging capabilities of the product. This is particularly important for PVC products used outdoors, as they are often exposed to harsh environmental conditions.

steric hindrance effect

The long chain structure of dioctyltin oxide gives it good steric hindrance effect, which helps protect PVC molecules from damage by external factors. The steric hindrance effect can prevent harmful substances from directly contacting the PVC molecular chain, thereby acting as a physical barrier and further enhancing the stability of PVC.

Improve processing performance

In PVC processing, dioctyltin oxide can improve the plasticizing properties of the material, reduce the melting temperature, shorten the processing cycle, and improve production efficiency. This not only saves energy consumption, but also reduces production costs and improves economic benefits.

Structural Characteristics

The chemical formula of dioctyltin oxide is C16H34OSn. Its molecular structure contains two octyl chains and one tin oxide group. This special structure not only has good lipophilicity, but also can be evenly dispersed in the plastic matrix, ensuring the full play of its stabilizer function.

Application fields

Dioctyltin oxide is widely used in PVC soft products, hard products, and various PVC films, pipes, plates, wire and cable sheaths and other products. From PVC pipes used in construction to plastic packaging common in daily life, to automotive interior parts, dioctyltin oxide is one of the indispensable additives.

Safety and environmental protection

Although the application of dioctyltin oxide in the plastics industry has brought many benefits, its potential environmental and health risks also need to be taken into account. As an organotin compound, it may be harmful to aquatic life and is a potential threat to human health at high concentrations. As a result, the industry is constantly exploring safer and greener alternatives to reduce environmental impact while meeting increasingly stringent regulatory requirements.

In short, dioctyltin oxide is used in the plastics industry, especially in the production of PVC products, to ensure product quality, extend service life and improve processing Key ingredients for performance. However, its use also needs to be cautious to balance the relationship between economic benefits and environmental protection. With the development of green chemistry, finding more sustainable solutions will be an important trend in the plastics industry in the future.

Extended reading:

CAS:2212-32-0 – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co., LTD

N,N-Dicyclohexylmethylamine – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co ., LTD

bismuth neodecanoate/CAS 251-964-6 – Amine Catalysts (newtopchem.com)

stannous neodecanoate catalysts – Amine Catalysts (newtopchem.com)

polyurethane tertiary amine catalyst/Dabco 2039 catalyst – Amine Catalysts (newtopchem.com)

DMCHA – morpholine

N-Methylmorpholine – morpholine

Polycat 41 catalyst CAS10294-43-5 Evonik Germany – BDMAEE

Polycat DBU catalyst CAS6674-22-2 Evonik Germany – BDMAEE

Dimethyltin oxide purchasing channels

Dimethyltin Oxide, with the chemical formula C2H6OSn, is a compound widely used in the chemical industry, especially in polymers. Used as heat stabilizer in vinyl chloride (PVC) processing. Due to its special properties and application requirements, finding reliable purchase channels for dimethyltin oxide is crucial for many manufacturers and research institutions.

1. Direct manufacturer purchasing

One of the direct and cost-effective ways to purchase is from direct manufacturers. For example, Yunnan Lilian Biotechnology Co., Ltd. is one of the well-known dimethyltin oxide manufacturers, specializing in the manufacture of PVC heat stabilizers. By contacting manufacturers directly, you can get better prices, customized product specifications, and a stable supply chain. Manufacturers are often able to provide the production volumes required for large orders and can adjust product quality standards to your specific needs.

2. Chemical raw material suppliers

Chemical raw material suppliers are another important purchasing channel. These suppliers often have extensive inventories of chemicals, including dimethyltin oxide. They purchase from different manufacturers and then distribute to end users. Suppliers such as Nantong Adwang Chemical Co., Ltd., Suzhou Senfeida Chemical Co., Ltd., Shanghai Hanyu Chemical Co., Ltd., etc., provide products of different purity and packaging specifications, suitable for laboratory use to industrial production needs.

3. Online trading platform

With the development of e-commerce, online trading platforms have become an increasingly popular purchasing channel. Alibaba, Global Plastics Network, 007 Business Station and other platforms provide a large amount of dimethyltin oxide supplier information. These platforms not only facilitate comparison of prices and services from different suppliers, but also provide transaction protection measures to reduce transaction risks. Users can easily find domestic and foreign suppliers through these platforms, and make inquiries and purchases.

4. Professional chemical reagent company

Companies that focus on the sales of chemical reagents are also good choices for purchasing dimethyltin oxide. These companies, such as Xi’an Qiyue Biotechnology Co., Ltd., typically provide high-quality chemical reagents, including high-purity dimethyltin oxide, suitable for scientific research and analytical testing. This type of supplier has strict standards for product purity and quality control, making them ideal for scientific research institutions and laboratories.

5. Chemical exhibitions and industry conferences

Attending chemical industry shows and conferences is another way to find buying channels. These events bring together numerous chemical manufacturers and distributors, providing opportunities for face-to-face communication and helping to build long-term relationships. Through exhibitions, you can directly understand market dynamics, product information, and have in-depth communication with potential suppliers.

6. Agents and Distributors

In some areas, there may not be a direct manufacturer or supplier. At this time, purchasing dimethyltin oxide through a local agent or distributor is a feasible option. These middlemen can help you solve problems such as logistics and import duties and simplify the purchasing process.

7. Customized synthesis services

For customers with special needs, such as dimethyltin oxide with specific purity, packaging form or customized formula, you can consider using custom synthesis services. Some chemical companies offer this service, producing products according to customers’ specific requirements.

Conclusion

Selecting the correct purchasing channel depends on many factors, including the quantity of dimethyltin oxide required, quality requirements, budget and whether other Value-added services. It is recommended to conduct sufficient market research and supplier evaluation on different channels before making a decision to ensure that you obtain products that suit your needs and favorable trading conditions. At the same time, considering the potential toxicity of dimethyltin oxide, you should also ensure that you comply with all relevant safety and environmental regulations when purchasing.

Extended reading:

CAS:2212-32-0 – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co., LTD

N,N-Dicyclohexylmethylamine – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co ., LTD

bismuth neodecanoate/CAS 251-964-6 – Amine Catalysts (newtopchem.com)

stannous neodecanoate catalysts – Amine Catalysts (newtopchem.com)

polyurethane tertiary amine catalyst/Dabco 2039 catalyst – Amine Catalysts (newtopchem.com)

DMCHA – morpholine

N-Methylmorpholine – morpholine

Polycat 41 catalyst CAS10294-43-5 Evonik Germany – BDMAEE

Polycat DBU catalyst CAS6674-22-2 Evonik Germany – BDMAEE

Dimethyltin oxide supplier list

Dimethyltin Oxide, with the chemical formula C2H6OSn, is an important organotin compound used in the plastics industry, especially in polyethylene. Vinyl chloride (PVC) is widely used in the field of heat stabilizers. Due to its importance and specificity, there are several suppliers worldwide dedicated to the production and sale of this chemical. The following is a list of dimethyltin oxide suppliers based on public information, intended to provide reference for companies and individuals seeking this product.

1. Chinese suppliers

–Kunming dimethyltin oxide manufacturer

Yunnan Lilian Biotechnology Co., Ltd. is a company specializing in the production of dimethyltin oxide. Its products are mainly used as PVC heat stabilizers and are suitable for various plastic processing fields.

–Tianmen Hengchang Chemical Co., Ltd.

Provide spot supply of dimethyltin oxide, focus on the production and sales of chemical raw materials, and be able to meet the quality and quantity requirements of different customers.

–Shanghai Hanyu Chemical Co., Ltd.

Specializing in the sales of chemical reagents and fine chemicals, dimethyltin oxide is one of its products and is provided to scientific research and industrial users.

–Nantong Adwang Chemical Co., Ltd.

Mainly engaged in various types of chemical raw materials, including a variety of products including dimethyltin oxide, serving multiple industries.

–Suzhou Senfida Chemical Co., Ltd.

Supply dimethyltin oxide and other chemical products, focusing on product quality and customer service.

2. International Suppliers

–Bidepharm

An international chemical reagent supplier provides dimethyltin oxide and other chemicals with a standard purity of 98% and provides detailed quality inspection reports.

3. Through online platforms

–Alibaba

One of the world’s largest B2B e-commerce platforms brings together many domestic and foreign dimethyltin oxide suppliers. Users can compare prices, quality and delivery times on this platform.

–Global Plastics Network

A trading platform focusing on plastics and related chemicals, providing supplier information and price inquiries for dimethyltin oxide.

–Gade Chemical Network

A comprehensive chemical product trading platform where users can find detailed information and supplier lists of dimethyltin oxide.

–Yihubaiying.com

Gathers chemical product suppliers from all over China, including wholesale and retail information of dimethyltin oxide.

4. Chemical reagent company

–Xi’an Qiyue Biotechnology Co., Ltd.

Specialized in providing chemical reagents, including high-purity dimethyltin oxide, suitable for scientific research and analytical testing.

Factors to consider when selecting a supplier

When selecting a dimethyltin oxide supplier, the following factors should be taken into consideration:

  • Product Purity and Quality: Make sure your supplier can provide products that meet the purity and quality standards you require.
  • Price vs. Cost: Compare quotes from different suppliers, taking into account shipping costs and possible tariffs, and choose the most cost-effective option.
  • Delivery Time and Reliability: Understand your supplier’s delivery schedule and history to ensure supply chain stability.
  • After-sales service and technical support: Confirm whether the supplier provides after-sales support and technical consultation, which is especially important for complex applications.
  • Compliance and Safety: Ensure suppliers comply with all relevant safety, environmental and legal standards.

Through the above supplier list, combined with your own specific needs, you can comprehensively evaluate and select suitable dimethyltin oxide suppliers. Before actual transactions, it is recommended to conduct sample testing and small batch trial purchases to verify the supplier’s product quality and business reputation.

Extended reading:

CAS:2212-32-0 – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co., LTD

N,N-Dicyclohexylmethylamine – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co ., LTD

bismuth neodecanoate/CAS 251-964-6 – Amine Catalysts (newtopchem.com)

stannous neodecanoate catalysts – Amine Catalysts (newtopchem.com)

polyurethane tertiary amine catalyst/Dabco 2039 catalyst – Amine Catalysts (newtopchem.com)

DMCHA – morpholine

N-Methylmorpholine – morpholine

Polycat 41 catalyst CAS10294-43-5 Evonik Germany – BDMAEE

Polycat DBU catalyst CAS6674-22-2 Evonik Germany – BDMAEE

Dimethyltin Oxide Laboratory Instructions

Dimethyltin Oxide, chemical formula C2H6OSn, is an organotin compound commonly used in a variety of chemical reactions in the laboratory and analytical testing. In a laboratory environment, the correct and safe use of dimethyltin oxide is critical to the success of experiments and the safety of personnel. Below is a basic guide to laboratory use of dimethyltin oxide.

1. Physical and chemical properties

Dimethyltin oxide is a white powder with a melting point of about 395°C and a low boiling point, but it will not volatilize under standard conditions. It is stable in air, but contact with acids, alkalis, and strong oxidants should be avoided to prevent reactions.

2. Storage conditions

  • Temperature control: Should be stored in a cool, dry place, ideal storage temperature is 2-8°C.
  • Sealed storage: The container must be sealed to prevent moisture and air from entering and reduce the risk of oxidation and degradation.
  • Isolated storage: Keep away from incompatible substances such as strong acids, alkalis and oxidizing agents.

3. Security

  • Personal Protective Equipment (PPE): Appropriate PPE should be worn when operating, including but not limited to lab coats, protective glasses, gloves, and respirators.
  • Ventilation: Should be used in a well-ventilated environment, inside a fume hood, to reduce the risk of inhalation.
  • Emergency treatment: Be familiar with the emergency measures. If it comes into contact with skin or eyes, rinse immediately with plenty of water and seek medical help.

4. Experimental operation

  • Measuring and weighing: Use accurate weighing equipment to ensure the accuracy and repeatability of the experiment.
  • Reaction conditions: Adjust reaction conditions, such as temperature, pressure and solvent type, according to the purpose of the experiment.
  • Monitor the reaction: Use appropriate monitoring methods to track the progress of the reaction, such as TLC (Thin Layer Chromatography), GC (Gas Chromatography) or HPLC (High Performance Liquid Chromatography).

5. Waste Disposal

  • Classified collection: Collect dimethyltin oxide and its reaction by-products separately to avoid mixing with other chemical wastes.
  • Safe disposal: Follow local laws, regulations and laboratory policies and hand over waste to qualified disposal units.

6. Emergency response

  • Leakage treatment: Small leaks can be cleaned up with sand or inert absorbent materials. Large leaks should be handled by professionals.
  • Incident Reporting: Any incident involving dimethyltin oxide should be reported immediately and an appropriate incident response plan initiated.

7. Regulatory Compliance

Ensure that all laboratory operations comply with local and international safety and environmental regulations, including but not limited to the “Regulations on the Safety Management of Hazardous Chemicals”, “Occupational Health and Safety Management System”, etc.

8. Training and Education

All laboratory personnel must receive training on the properties and safe handling of dimethyltin oxide, including what to do in an emergency.

Summary

The use of dimethyltin oxide in the laboratory requires strict operating procedures and careful safety measures. By following the above guidelines, experimental risks can be reduced to the greatest extent, personnel safety can be ensured, and the efficiency and accuracy of experiments can be improved. In any case of uncertainty, professional chemical safety information should be consulted or the help of an experienced colleague should be sought. Always remember that safety is always the first principle in laboratory work.

Extended reading:

CAS:2212-32-0 – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co., LTD

N,N-Dicyclohexylmethylamine – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co ., LTD

bismuth neodecanoate/CAS 251-964-6 – Amine Catalysts (newtopchem.com)

stannous neodecanoate catalysts – Amine Catalysts (newtopchem.com)

polyurethane tertiary amine catalyst/Dabco 2039 catalyst – Amine Catalysts (newtopchem.com)

DMCHA – morpholine

N-Methylmorpholine – morpholine

Polycat 41 catalyst CAS10294-43-5 Evonik Germany – BDMAEE

Polycat DBU catalyst CAS6674-22-2 Evonik Germany – BDMAEE

Dimethyltin oxide chemical reaction equation

Dimethyltin Oxide, chemical formula C2H6OSn, as an organotin compound, plays an important role in chemical synthesis and industrial applications Role. Although dimethyltin oxide does not have as broad a basic chemical reaction equation as inorganic tin compounds, it can still participate in a series of chemical reactions under specific conditions, especially in organic synthesis, catalysis, and interactions with other chemical substances. middle. Several chemical reaction equations related to dimethyltin oxide are listed below to demonstrate its applications in laboratory and industry.

1. Synthesis reaction

The synthesis of dimethyltin oxide usually involves the reaction of a dimethyltin compound with oxygen or an oxidizing agent. For example, it is produced by the reaction of dimethyltin dichloride ((CH3)2SnCl2) with oxygen:

(3)22+2→(3)2+22(CH3​)2​SnCl2​+O2​→(CH3​ )2​SnO+2C l2​

However, the actual synthetic route may be more complex, involving catalysts and specific reaction conditions.

2. Catalytic reaction

Dimethyltin oxide is used as a catalyst in organic synthesis and participates in the synthesis or transformation of alcohols, ketones, esters and other compounds. For example, it can catalyze the reaction of alcohols with acid anhydrides to form esters:

+()2→(3)2′+2ROH+(RCOO)2​( CH3​)2​SnO​RCOOR′+H2​ O

Here R and R’ represent different alkyl or aryl groups.

3. Hydrolysis reaction

In the presence of water, dimethyltin oxide can hydrolyze to produce the corresponding alkoxides and acids:

(3)2+2→(3)2()2+2(C H3 ​)2​SnO+ H2 ​O→( CH3​)2​Sn(OH)2​+HO2​

In fact, the hydrolysis process may be more complex, and the products may also vary depending on the reaction conditions.

4. Reaction with acid

Dimethyltin oxide can react with strong acids, such as hydrochloric acid or nitric acid, to produce the corresponding salts and water:

(3)2+2→(3)22+2(CH3​) 2​SnO+2HCl→(C H3 ​)2​SnCl2​+H 2​ O

5. Replacement reaction with other metal salts

Dimethyltin oxide can react with certain metal salts to replace metal ions and generate new organic metal compounds. For example, reaction with copper sulfate may produce dimethyltin disulfate:

(3)2+4→(3)24+(C H3​)2​ SnO+ CuS O4​→(CH3​)2​ SnSO4 ​+CuO

However, the above reaction equation is only an example, and the actual reaction may be affected by reaction conditions, catalysts and side reactions.

6. As a reducing agent

Under certain conditions, dimethyltin oxide can be used as a reducing agent to reduce certain compounds. For example, it can reduce certain metal ions:

(3)2+2+→(3)22++2(−1 )+(CH3 ​)2​SnO+ 2M n+→( CH3​)2​Sn 2+ +2M(n−1)+

M here represents the metal ion, and n represents its oxidation state.

Summary

The chemical reaction equation of dimethyltin oxide demonstrates its versatility in chemical synthesis, catalysis, and metal ion replacement. However, due to the characteristics of dimethyltin oxide and the diversity of reaction conditions, practical applications may require adjustment of reaction conditions, including temperature, pressure, solvent selection, and catalyst use, according to specific goals and reaction systems. Additionally, due to the possible toxicity of dimethyltin oxide, all experiments should be performed under appropriate personal protection and safety conditions, following laboratory safety guidelines and chemical handling regulations.

Extended reading:

CAS:2212-32-0 – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co., LTD

N,N-Dicyclohexylmethylamine – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co ., LTD

bismuth neodecanoate/CAS 251-964-6 – Amine Catalysts (newtopchem.com)

stannous neodecanoate catalysts – Amine Catalysts (newtopchem.com)

polyurethane tertiary amine catalyst/Dabco 2039 catalyst – Amine Catalysts (newtopchem.com)

DMCHA – morpholine

N-Methylmorpholine – morpholine

Polycat 41 catalyst CAS10294-43-5 Evonik Germany – BDMAEE

Polycat DBU catalyst CAS6674-22-2 Evonik Germany – BDMAEE

Application of dimethyltin oxide in organic synthesis

Dimethyltin Oxide (Dimethyltin Oxide), chemical formula C2H6OSn, is an important organotin compound because of its unique chemical properties. Plays a key role in organic synthesis. This compound is known for its excellent catalytic properties, especially in promoting esterification, acetalization and other organic transformation reactions. Below we will discuss in detail some of the main applications of dimethyltin oxide in organic synthesis.

1. Catalysis of esterification reaction

Esterification reaction is one of the common types of reactions in organic synthesis. It usually involves the reaction between alcohol and carboxylic acid or its derivatives (such as acid anhydride, acid halide) to produce ester and water. Dimethyltin oxide acts as an effective catalyst to speed up this process, increase yields and reduce the severity of the required reaction conditions. For example, in an esterification reaction, alcohol and anhydride react in the presence of dimethyltin oxide to form ester compounds:

−+(′)2=→(3)2−−()−′ +2R−OH+(R′)2C=O(CH3​) 2​SnO​R−O−C(O)−R′+H 2​O

2. Formation of acetals and ketals

Acetals and ketals are formed by the reaction of alcohols and aldehydes or ketones under acidic or basic conditions. These compounds have a wide range of applications in organic chemistry, such as as protecting groups or as intermediates in synthetic routes. Dimethyltin oxide can effectively catalyze this type of reaction, promote the condensation of alcohols with aldehydes or ketones, and form a more stable acetal or ketal structure:

−+′→(3)2−−′+2R−OH+ R′CHO(CH3​)2​Sn O​ R−O−R′+H 2​O

3. Preparation of other organotin compounds

Dimethyltin oxide is not only an excellent catalyst in itself, but can also be used as a precursor to prepare other organotin compounds. For example, it can be converted into dimethyl stannous ((CH3)2SnH) and tin lactones (Sn-lactones) through reduction or other reactions, the latter of which are also widely used in organic synthesis:

(3)2+2→(3)2+2(CH3​)2​SnO+H2​→(CH3​)2​SnH+HO2​

4. Application in optoelectronic materials

In addition to the traditional field of organic synthesis, dimethyltin oxide is also used in the development of new organic photovoltaic materials due to its unique photoelectric properties. It can be used as a component of the electron transport layer to improve the efficiency and stability of organic solar cells, thanks to its good charge transport capabilities and chemical stability.

5. Additives as curing agents and preservatives

In the coating and dye industry, dimethyltin oxide can be used as a curing agent or preservative additive to improve product performance.�It helps speed up the curing process of the coating while increasing its resistance to environmental factors and extending the service life of the product.

Safety and Precautions

Although dimethyltin oxide has many advantages in organic synthesis, it must be used with caution. Organotin compounds generally have a certain degree of toxicity, especially long-term exposure or high doses, which may affect human health. Therefore, appropriate safety measures should be taken when handling dimethyltin oxide, including wearing personal protective equipment, operating in a well-ventilated environment, and following chemical safety guidelines.

In short, dimethyltin oxide has occupied a place in the field of organic synthesis with its excellent catalytic performance and versatility. It has a wide range of applications from traditional esterification and condensation reactions to the development of cutting-edge optoelectronic materials. prospect. However, its use should always follow strict safety regulations to ensure the health and safety of operators.

Extended reading:

CAS:2212-32-0 – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co., LTD

N,N-Dicyclohexylmethylamine – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co ., LTD

bismuth neodecanoate/CAS 251-964-6 – Amine Catalysts (newtopchem.com)

stannous neodecanoate catalysts – Amine Catalysts (newtopchem.com)

polyurethane tertiary amine catalyst/Dabco 2039 catalyst – Amine Catalysts (newtopchem.com)

DMCHA – morpholine

N-Methylmorpholine – morpholine

Polycat 41 catalyst CAS10294-43-5 Evonik Germany – BDMAEE

Polycat DBU catalyst CAS6674-22-2 Evonik Germany – BDMAEE