Month: June 2024

Research progress on biodegradation of dioctyltin dicocoate

Dioctyltin dicocoate (DOTE), as an organotin compound, is widely used in plastic stabilizers, catalysts and other fields. of great concern, but its environmental persistence and bioaccumulation have caused deep concern among environmentalists and chemists. In order to alleviate these environmental problems, research on the biodegradation of DOTE has become a hot spot in the field of scientific research, aiming to find effective degradation pathways and reduce its impact on the ecosystem. The following is an overview of research progress in DOTE biodegradation in recent years.

Microbial degradation research

Microbial degradation is one of the direct and effective ways to solve organic pollutants. Studies have found that certain specific microbial populations are able to metabolize DOTE or its degradation products. For example, certain fungi and bacteria have shown the ability to degrade organotin compounds. By screening, isolating and characterizing these microorganisms, scientists are trying to unravel their degradation mechanisms, including identifying key enzyme systems and metabolic pathways involved in degradation. It is worth noting that some microorganisms can convert DOTE into relatively harmless or easily biodegradable products through oxidation, reduction or hydrolysis reactions.

Enzymatic degradation

In addition to directly utilizing microorganisms, research has also focused on extracting specific enzymes from microorganisms, such as esterases and dehalogenases, which can specifically catalyze the degradation of DOTE. The advantages of enzymatic degradation include mild reaction conditions, high selectivity, and easy process control. By optimizing the expression and activity of these enzymes through genetic engineering technology, scientists are working hard to improve their efficiency and stability in practical applications and provide an efficient means for biological treatment of DOTE.

Combined degradation system

Given that a single microorganism or enzyme may not be sufficient to completely degrade DOTE or the degradation efficiency is not high, building a joint degradation system has become a new strategy. This includes the combined application of microbial co-culture systems and enzyme engineering, aiming to simulate the complex biodegradation network in nature and improve overall degradation efficiency. By optimizing the composition and proportion of the microbial population, as well as the type and timing of enzyme addition, the combined degradation system can degrade DOTE more effectively and even target intermediate products in its degradation process to further accelerate the entire process.

The impact of environmental factors on degradation

Environmental factors, such as pH, temperature, oxygen supply, and coexisting pollutants, have a significant impact on the biodegradation of DOTE. Research shows that suitable environmental conditions can significantly promote the growth and metabolic activities of microorganisms, thereby accelerating the degradation of DOTE. Therefore, understanding and regulating these factors is crucial for designing efficient biodegradation systems.

Future Outlook

Although preliminary progress has been made in the biodegradation research of DOTE, it still faces many challenges, such as improving the degradation efficiency and deepening the degradation mechanism. Understand and scale application of environmentally friendly processing technologies. Future research will focus on discovering more efficient degrading microorganisms and enzymes, optimizing degradation conditions, and developing environmentally compatible and cost-effective biological treatment processes. In addition, the application of high-throughput technologies such as genomics, proteomics and metabolomics will provide powerful tools to reveal the molecular mechanism of DOTE degradation and promote in-depth research in this field.

In summary, research on the biodegradation of dioctyltin dicocoate is in a stage of rapid development, through microbiology, enzymology and environmental engineering. The comprehensive application provides new ideas and hope for solving the problem of degradation of environmental pollutants. With the deepening of research and the advancement of technology, we have reason to believe that more effective and environmentally friendly methods can be found in the future to deal with and reduce the potential harm of DOTE to the environment.

Extended reading:

Dabco amine catalyst/Low density sponge catalyst

High efficiency amine catalyst/Dabco amine catalyst

Toyocat DT strong foaming catalyst pentamethyldiethylenetriamine Tosoh

NT CAT PC-41

NT CAT PC-8

NT CAT A-33

DABCO 1027/foaming retarder – Amine Catalysts (newtopchem.com)

DBU – Amine Catalysts (newtopchem.com)

High Quality 3164-85-0 / K-15 Catalyst / Potassium Isooctanoate

High Quality Bismuth Octoate / 67874-71-9 / Bismuth 2-Ethylhexanoate<

The use and controversy of dioctyltin dicocoate in the cosmetics industry

In the field of cosmetics and personal care products, although dioctyltin dicocoate (DOTE) is not used as a main ingredient, it is occasionally used as a specific Functional additives, especially when it comes to formulation stability and texture optimization. However, its application has been accompanied by a series of controversies, mainly surrounding safety, environmental impact and compliance.

Use a background

With its unique chemical structure, DOTE can play multiple roles in certain cosmetic formulations, including serving as a catalyst to assist chemical reactions, or improving product texture and extending shelf life through its specific physical and chemical properties. For example, in sunscreens and skin care lotions, it may be used to enhance the stability and water-repellent properties of the formulation, ensuring consistent quality throughout the product’s use by consumers.

Controversy

  1. Safety Controversy: Although DOTE is less toxic than some other organotin compounds, long-term exposure to organotin compounds may still pose potential risks to human health, including endocrine disruption and immune system Influence. The public and regulatory agencies are increasingly concerned about the potential harm to consumers from any ingredient used in cosmetics, especially given the direct contact with skin and frequent use of cosmetics.
  2. Environmental Impact: Like all organotin compounds, DOTE is difficult to degrade in nature and may accumulate in organisms, posing a threat to aquatic ecosystems. Environmental groups and scientists have called for reducing the use of such substances in consumer products to reduce the burden on the environment.
  3. Compliance Considerations: As regulations on cosmetic ingredients become increasingly stringent around the world, the use of DOTE is subject to strict legal restrictions. For example, the EU Cosmetics Regulation (EC) No 1223/2009 restricts or prohibits the use of certain organotin compounds in cosmetics. Although the specific provisions may not directly mention DOTE, the trend of strict supervision of the entire organotin substance has affected industry acceptance.

Industry Response and Alternatives

Facing the above-mentioned controversy, the cosmetics industry has taken a series of actions to respond. On the one hand, ingredient safety assessments have been strengthened, with many brands actively avoiding the use of DOTE or looking for safer alternatives. On the other hand, scientific researchers are committed to developing new materials with similar properties but higher environmental and biological safety, such as plant-based natural preservatives, synthetic ester stabilizers, etc.

Conclusion

Although the application of dioctyltin dicocoate in the cosmetics industry has demonstrated specific technical advantages, its potential health and environmental risks have prompted concerns both inside and outside the industry. Its usefulness has been re-evaluated. With the increasing awareness of sustainable development and consumer health, cosmetics manufacturers are actively adjusting formulas, reducing the use of controversial ingredients, and instead exploring and adopting safer and more environmentally friendly alternatives. In the future, with the advancement of science and technology and the improvement of regulatory policies, the selection of ingredients in the cosmetics industry will pay more attention to the dual harmony of ecology and human health.

Extended reading:

Dabco amine catalyst/Low density sponge catalyst

High efficiency amine catalyst/Dabco amine catalyst

Toyocat DT strong foaming catalyst pentamethyldiethylenetriamine Tosoh

NT CAT PC-41

NT CAT PC-8

NT CAT A-33

DABCO 1027/foaming retarder – Amine Catalysts (newtopchem.com)

DBU – Amine Catalysts (newtopchem.com)

High Quality 3164-85-0 / K-15 Catalyst / Potassium Isooctanoate

High Quality Bismuth Octoate / 67874-71-9 / Bismuth 2-Ethylhexanoate<

Synthesis method and process optimization of dioctyltin dicocoate

In the field of chemical synthesis, dioctyltin dicocoate (DOTE) is an important organotin compound because of its use in plastic catalysts, stabilizers, etc. It has attracted much attention due to its wide range of applications in various fields. Its synthesis not only involves complex chemical reactions, but also requires careful process control to ensure product purity and yield. This article aims to discuss the synthesis method of DOTE and its process optimization strategy, with a view to providing reference for related research and industrial production.

Synthetic principles and basic methods

The synthesis of DOTE is usually based on the esterification reaction of fatty acids and dioctyltin. The basic steps include: first, esterify dioctyltin and coconut acid under certain conditions. This process often requires the presence of a catalyst to accelerate the reaction; second, remove unreacted raw materials, by-products and catalysts through subsequent purification steps to obtain Pure DOTE product.

Classic synthesis routes

The classic synthesis route adopts the direct esterification method, in which dioctyltin and coconut acid are esterified under heating conditions with the help of an acidic or alkaline catalyst. Commonly used catalysts include sulfuric acid, sodium methoxide, etc. This method is simple to operate, but has problems such as slow reaction rate, many by-products, and low product purity.

Process Optimization Strategy

  1. Catalyst selection and optimization: Research shows that using solid super acid or solid base as a catalyst can not only significantly increase the rate of esterification reaction, but also effectively reduce the occurrence of side reactions and improve the efficiency of DOTE. Yield and purity. For example, supported heteropolyacid catalysts have become one of the preferred catalysts due to their good acidity, recyclability and environmental friendliness.
  2. Reaction condition control: Precise control of temperature, pressure and reaction time is crucial to improve the efficiency of DOTE synthesis. A suitable reaction temperature (usually between 100-150°C) can speed up the esterification rate, but if it is too high, it may lead to an increase in side reactions. Microwave heating or ultrasonic assistance can effectively shorten the reaction time and improve the selectivity of the reaction.
  3. Solvent effect: The choice of solvent not only affects the polarity of the reaction medium, but also indirectly regulates the activity of the reactants and the solubility of the product. Non-polar or weakly polar solvents such as cyclohexane and toluene are often used to promote effective contact between hydrophobic dioctyltin and coconut acid. Through solvent engineering, such as using green solvents or supercritical fluids as reaction media, the greenness of the reaction and the separation efficiency of the product can be further improved.
  4. Post-processing technology: Efficient post-processing technology is crucial to improving the purity of DOTE. The use of extraction, crystallization, column chromatography or membrane filtration to remove unreacted substances and by-products, especially the use of continuous and automated operations, can greatly improve product quality and production efficiency.

Future Trends

As the concept of green chemistry becomes more and more popular, the synthesis process of DOTE is also developing in a more environmentally friendly and efficient direction. For example, biocatalysis technology utilizes the high selectivity and mild reaction conditions of enzymes to provide a new route for the green synthesis of DOTE. In addition, optimizing the catalyst structure and reaction conditions through computer-aided design, and using micro-reaction technology to accurately control reaction parameters are important directions for future DOTE synthesis process optimization.

In short, the synthesis and process optimization of dioctyltin dicocoate is a multidisciplinary project involving chemical reaction engineering, catalyst science, separation technology, etc. complex process. Through continuous technological innovation and process improvement, it can not only improve the synthesis efficiency and product quality of DOTE, but also effectively reduce production costs and reduce environmental burdens, in line with the requirements of sustainable development of the modern chemical industry.

Extended reading:

Dabco amine catalyst/Low density sponge catalyst

High efficiency amine catalyst/Dabco amine catalyst

Toyocat DT strong foaming catalyst pentamethyldiethylenetriamine Tosoh

NT CAT PC-41

NT CAT PC-8

NT CAT A-33

DABCO 1027/foaming retarder – Amine Catalysts (newtopchem.com)

DBU – Amine Catalysts (newtopchem.com)

High Quality 3164-85-0 / K-15 Catalyst / Potassium Isooctanoate

High Quality Bismuth Octoate / 67874-71-9 / Bismuth 2-Ethylhexanoate<

Environmental impact of dioctyltin dicocoate and exploration of alternatives

In the field of plastics and synthetic materials, dioctyltin dicocoate (DOTE) has been widely adopted as a highly efficient heat stabiliser due to its contribution to the performance enhancement and processing convenience of plastic products. However, as global environmental awareness increases, the potential negative environmental impacts of DOTE are coming into focus, prompting researchers and the industry to actively explore more environmentally friendly alternatives.

Environmental Impact Analysis

DOTE is an organotin compound, which is regarded as an important class of pollutants in environmental science due to its persistent, bioaccumulative and toxic (PBT) characteristics.DOTE is not easily degraded in the natural environment, and may be transported to remote ecosystems through the air, water, and soil, which may in turn pose a threat to non-target organisms. In particular, aquatic organisms, such as fish and shellfish, can reach high concentrations of organotin compounds in their bodies due to the bioaccumulation effect in the food chain, affecting their reproductive health, growth and development, and even survival.

In addition, the ecotoxicity of DOTE is not limited to direct exposure, but its breakdown products in the environment may also be toxic, further exacerbating the potential harm to the ecosystem. In view of this, international environmental regulations such as the European Union’s REACH regulation have classified it as a Substance of Very High Concern (SVHC), severely restricting its use in certain products, especially those related to food contact and children’s toys.

Exploring alternatives

In the face of environmental pressure and regulatory restrictions, developing and promoting alternatives to DOTE has become an urgent need for the plastics industry. The exploration of alternatives is mainly focused on the following directions:

Organic Calcium and Zinc Stabilizers: Calcium and zinc compound stabilizers have become direct substitutes for DOTE due to their environmentally friendly and non-toxic properties. Although initially in the thermal stability and transparency is slightly inferior, but in recent years the technological progress has significantly improved its performance, suitable for a variety of PVC products.
Organic magnesium-zinc stabilisers: Similar to calcium-zinc stabilisers, organo-magnesium-zinc systems also offer good environmental performance and, in some specific applications such as rigid PVC products, better processability and mechanical strength.
Specially designed organotin stabilisers: In response to the environmental concerns of DOTE, researchers are working to develop new organotin stabilisers, such as compounds designed to have faster biodegradation rates or lower bioaccumulation, with the aim of reducing their long-term environmental impact.
Non-metallic stabilisers: A number of novel non-metallic stabilisers, such as organophosphates and polyol esters, demonstrate potential for specific applications, often with low environmental burdens, but with a level of technological maturity and cost-effectiveness that needs to be further optimised.
Nanomaterials: Nanoparticles, such as zinc oxide nanoparticles and titanium dioxide nanoparticles, show excellent stability and antimicrobial properties due to their surface and volume effects, and are expected to replace conventional stabilisers in certain high-end applications, but their environmental safety and long-term health impacts still need to be thoroughly evaluated.

Conclusion and Outlook

The environmental impact of dioctyltin dicocoate highlights the urgency of seeking safer and environmentally friendly alternatives in the field of plastic additives. The development and deployment of alternatives is not only a response to existing environmental regulations, but also a critical step towards sustainability in the plastics industry. Although alternatives face challenges in terms of matching performance and controlling costs, technological advances and market demand are accelerating the process. In the future, a multi-dimensional assessment that integrates environmental impact, economic viability and product performance will become an important principle guiding the selection and development of plastic stabilisers. With the emergence of more innovative solutions, the plastics industry is expected to gradually realise the comprehensive replacement of traditional high-risk substances, and move towards a greener, more sustainable development path.

Extended Reading:

Dabco amine catalyst/Low density sponge catalyst

High efficiency amine catalyst/Dabco amine catalyst

Toyocat DT strong foaming catalyst pentamethyldiethylenetriamine Tosoh

NT CAT PC-41

NT CAT PC-8

NT CAT A-33

DABCO 1027/foaming retarder – Amine Catalysts (newtopchem.com)

DBU – Amine Catalysts (newtopchem.com)

High Quality 3164-85-0 / K-15 Catalyst / Potassium Isooctanoate

High Quality Bismuth Octoate / 67874-71-9 / Bismuth 2-Ethylhexanoate

Application of dioctyltin dicocoate in plastic stabilizers

Application of dioctyltin dicocoate in plastic stabilizers

In the production and application of plastic products, heat stabilizers play a vital role. They can effectively inhibit the degradation of plastics caused by heat, light and other factors during processing and use, ensuring the physical and mechanical properties of the material. performance. Dioctyltin dicocoate (DOTE), as a highly efficient organotin compound, is a leader in the plastic stabilizer family, especially in the polyvinyl chloride (PVC) industry, showing excellent performance.

Introduction

The rapid development of the plastics industry has placed an increasing demand for heat stabilizers, and the improvement of environmental protection and safety standards has prompted the industry to seek better stabilizer solutions. Due to its unique chemical structure, dioctyltin dicocoate not only has excellent thermal stability, but also exhibits low toxicity and good biocompatibility, making it an ideal choice to replace traditional lead-containing or highly toxic stabilizers.

Mechanism of action

The mechanism of action of dioctyltin dicocoate in PVC processing mainly involves chain transfer reaction and free radical capture. It can effectively capture HCl generated by thermal degradation of PVC, prevent hydrogen chloride from further causing PVC molecular chain breakage, and at the same time regulate the growth of the polymer chain through chain transfer and reduce the formation of unstable ends. In addition, its long chain structure provides good steric hindrance effect, protecting PVC from thermal oxygen and ultraviolet attack, thereby significantly improving the weather resistance and service life of the product.

Application areas

  1. PVC soft products: Among soft products such as wires and cables, floor leather, and artificial leather, DOTE ensures the beauty and durability of the products with its excellent transparency and low exudation. Meets food contact grade safety requirements.
  2. PVC hard products: Such as door and window profiles, pipes, plates, etc., DOTE helps to improve the processing fluidity of the products, reduce defects such as fish eyes and cracks during the processing, and improve the quality of the products. dimensional stability.
  3. Packaging materials: In food packaging materials such as films, bottle caps, and plastic wrap, DOTE acts as a non-toxic stabilizer to ensure food safety while giving the materials good sealing and moisture resistance. .

Performance Advantages

  • Low toxicity: Compared with traditional lead salts and some organotin stabilizers, the low toxicity of DOTE makes it widely used in food contact plastic products.
  • Transparency: In transparent PVC products, the use of DOTE will hardly cause an increase in haze, maintaining the high transparency of the material.
  • Weather resistance: Excellent resistance to oxidation and UV rays, extending the service life of plastic products used outdoors.
  • Processing performance: Good lubricity reduces wear on processing equipment and improves production efficiency.

Challenges and Limitations

Although dioctyltin dicocoate has shown many advantages, its potential ecological risks still require attention. Organotin compounds are not easily degraded in the environment and may cause cumulative toxicity to aquatic organisms. Therefore, the use of organotin has begun to be strictly regulated internationally, driving the industry to develop more environmentally friendly alternatives, such as the development of organocalcium-zinc stabilizers and new organotin stabilizers.

Conclusion

Dioctyltin dicocoate has become an indispensable part of the modern plastics industry with its unique properties in the field of plastic stabilizers, especially in PVC products. However, as the global awareness of sustainable development and environmental protection increases, developing greener and more efficient stabilizer systems to balance performance and environmental impact will be an important issue in the field of plastic additives in the future. Therefore, the research and application of dioctyltin dicocoate should not only ensure product performance, but also continuously explore measures to mitigate its environmental impact, and actively seek and evaluate a new generation of alternatives to meet the needs of the sustainable development of the plastics industry.

Extended reading:

Dabco amine catalyst/Low density sponge catalyst

High efficiency amine catalyst/Dabco amine catalyst

Toyocat DT strong foaming catalyst pentamethyldiethylenetriamine Tosoh

NT CAT PC-41

NT CAT PC-8

NT CAT A-33

DABCO 1027/foaming retarder – Amine Catalysts (newtopchem.com)

DBU – Amine Catalysts (newtopchem.com)

High Quality 3164-85-0 / K-15 Catalyst / Potassium Isooctanoate

High Quality Bismuth Octoate / 67874-71-9 / Bismuth 2-Ethylhexanoate<

Application of dioctyltin diacetate in plastic stabilizers

Diethylhexyltin Diacetate (DEHT or DEHT-DOT), as a highly efficient organotin compound, is widely used in the field of plastic stabilizers, especially in the processing and performance improvement of polyvinyl chloride (PVC) materials. plays an important role. Its unique chemical structure and performance characteristics make it an ideal additive for improving the thermal stability, light stability and aging resistance of plastic products. The application and advantages of dioctyltin diacetate in plastic stabilizers are described in detail below.

Enhanced thermal stability
PVC is prone to dehydrochlorination during high-temperature processing or long-term use, resulting in material discoloration and reduced mechanical properties. As a thermal stabilizer, dioctyltin diacetate can effectively capture free radicals generated by the decomposition of PVC and inhibit the dehydrochlorination reaction, thereby maintaining the thermal stability of the material. It chemically reacts with unstable chlorine atoms in PVC to form a stable complex, which reduces unstable factors inside PVC and extends the service life of the product.

Improved photostability
Light exposure is one of the main causes of aging of PVC materials. Dioctyltin diacetate has good light stability and can effectively resist the damaging effects of ultraviolet rays on PVC and reduce the yellowing and embrittlement of materials caused by light. By absorbing or shielding ultraviolet rays, it can protect the molecular structure of PVC from damage and maintain the transparency and beauty of plastic products, which is especially important for plastic products used outdoors.

Anti-aging properties
Plastic products will suffer from various aging processes such as oxidation and thermo-oxidative aging during long-term use and environmental changes. Dioctyltin diacetate forms a protective layer that prevents oxygen and other harmful substances from penetrating into the interior of PVC and delays the aging process. Its presence can also improve the weather resistance of PVC and maintain good performance even in harsh climate conditions.

Processing performance optimization
Dioctyltin diacetate also exhibits good processing aid properties during PVC processing. It can reduce the melting temperature of PVC, improve melt fluidity, make the processing process smoother, reduce equipment wear, and effectively prevent the occurrence of processing defects such as “fish eyes”, improving the surface quality and yield of products. At the same time, its lubricity helps reduce friction heat during processing, further enhancing the physical and mechanical properties of the product.

Environmental protection advantages
Compared with traditional lead salt stabilizers, dioctyltin diacetate has lower toxicity and meets the requirements of current environmental regulations, especially for sensitive applications such as food contact grade and children’s toys. As the global awareness of environmental protection increases, more and more countries and regions have begun to restrict or ban the use of lead salt stabilizers. As an environmentally friendly alternative, the market demand for dioctyltin diacetate continues to grow.

Application areas
In the plastics industry, dioctyltin diacetate is widely used in the production of wire and cable insulation layers, PVC doors and windows, films, floors, hoses, injection molded parts and other products. Especially in products that have strict requirements on transparency and health and safety, such as food packaging materials, medical equipment, etc., its application is more common.

Conclusion
To sum up, dioctyltin diacetate, as a plastic stabilizer, has become a plastic stabilizer due to its excellent performance in improving the thermal stability, light stability and aging resistance of PVC products, as well as its advantages in environmental protection and processing performance optimization. An indispensable additive for the processing industry. With the advancement of technology and increasingly stringent environmental standards, its application in the field of plastic stabilizers will become more extensive, and it will also promote the development of the industry in a more environmentally friendly and high-performance direction.
Further reading:

Dabco amine catalyst/Low density sponge catalyst

High efficiency amine catalyst/Dabco amine catalyst

Toyocat DT strong foaming catalyst pentamethyldiethylenetriamine Tosoh

NT CAT PC-41

NT CAT PC-8

NT CAT A-33

DABCO 1027/foaming retarder – Amine Catalysts (newtopchem.com)

DBU – Amine Catalysts (newtopchem.com)
High Quality 3164-85-0 / K-15 Catalyst / Potassium Isooctanoate
High Quality Bismuth Octoate / 67874-71-9 / Bismuth 2-Ethylhexanoate

Dioctyltin diacetate MSDS Safety Data Sheet

Diethylhexyltin Diacetate, as an organotin compound, has important application value in many fields. However, like all chemicals, their use, storage and disposal processes need to strictly follow the guidelines of the Material Safety Data Sheet (MSDS) to ensure personnel safety, environmental protection and compliance operations. The following is a summary of key safety information about dioctyltin diacetate based on general MSDS requirements. The specific content may vary depending on the manufacturer and product.

1. Chemical and corporate identification
Chemical name in Chinese: Dioctyltin diacetate
CAS number: The specific CAS number needs to be determined according to the product
Molecular formula: C20H36O4Sn
Molecular weight: about 486.11 g/mol
Manufacturer information: including manufacturer name, address, emergency contact number, etc.
2. Hazard Overview
Dioctyltin diacetate is an organotin compound and may have the following hazards:

Health Hazards: Prolonged or repeated exposure may cause neurological damage, reproductive effects, and skin and eye irritation.
Environmental Hazards: Toxic to aquatic life and may cause lasting environmental effects.
Physical hazards: Flammable, there is a risk of combustion and explosion when exposed to open flames, high temperatures or oxidants.
3. Ingredients/composition information
Main ingredient: dioctyltin diacetate, the specific content should be based on product specifications.
Hazardous ingredients: organotin compounds, please refer to the detailed MSDS for specific toxicological data.
4. First aid measures
Inhalation: Move the victim quickly to fresh air, keep the respiratory tract open, and perform artificial respiration or oxygen if necessary.
Skin contact: Take off contaminated clothing immediately and rinse skin with plenty of water for at least 15 minutes.
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes and seek medical assistance if necessary.
Ingestion: Do not induce vomiting, drink enough water immediately to dilute, and then seek medical advice.
5. Fire-fighting measures
Fire extinguishing media: dry powder, carbon dioxide, foam fire extinguisher, avoid using direct flow of water.
Special fire fighting methods: Wear protective equipment to prevent smoke inhalation, control the source of leaks, and prevent them from flowing into sewers and water sources.
Actions for non-firefighters: Stay away from the fire scene and evacuate upwind.
6. Accidental leakage measures
Personal Protection: Wear protective clothing, gloves, goggles and respirator.
Leakage treatment: Avoid direct contact, absorb with sand or other inert materials, collect and place in a closed container, and dispose of it as hazardous waste.
7. Operation and storage
Operation precautions: Operate in a well-ventilated environment, avoid contact with heat sources and sparks, and operators should receive professional training.
Storage conditions: Store in a cool, dry, well-ventilated place, away from fire, heat and incompatible substances.
8. Exposure controls/personal protection
Respiratory protection: Wear a suitable dust mask or respirator in environments where dust or vapor is generated.
Skin protection: Wear protective clothing and chemical-resistant gloves.
Eye protection: Wear chemical safety glasses or face shield.
9. Physical and chemical properties
Appearance and properties: colorless to light yellow transparent liquid.
Melting point: Depends on product purity and specific conditions.
Boiling point: >200°C (estimated, varies with pressure).
Density: about 1.055-1.075 g/cm³.
Solubility: Insoluble in water, soluble in most organic solvents.
10. Stability and reactivity
Stability: Stable under recommended storage conditions, avoid strong acids, bases and strong oxidizing agents.
Avoid contact with: moisture, strong alkali, strong oxidants, etc.
11. Disposal
Disposal should be carried out in accordance with national and regional laws and regulations on hazardous wastes and should not be discharged randomly.

12. Shipping Information
UN number: The specific number must refer to MSDS or relevant regulations.
Packaging category: Class II/III dangerous goods, the specific classification is based on the risk of the product.
13. Regulatory information
Comply with relevant laws and regulations such as the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), the EU REACH regulations, and China’s “Regulations on the Safety Management of Hazardous Chemicals”.

In summary, correctly understanding and implementing the MSDS content of dioctyltin diacetate is crucial to ensuring operational safety and maintaining the ecological environment. Users must carefully read and follow the new MSDS instructions provided by the manufacturer before use.
Further reading:

Dabco amine catalyst/Low density sponge catalyst

High efficiency amine catalyst/Dabco amine catalyst

Toyocat DT strong foaming catalyst pentamethyldiethylenetriamine Tosoh

NT CAT PC-41

NT CAT PC-8

NT CAT A-33

DABCO 1027/foaming retarder – Amine Catalysts (newtopchem.com)

DBU – Amine Catalysts (newtopchem.com)

High Quality 3164-85-0 / K-15 Catalyst / Potassium Isooctanoate

High Quality Bismuth Octoate / 67874-71-9 / Bismuth 2-Ethylhexanoate

Physicochemical properties and uses of dioctyltin diacetate

Diethylhexyltin Diacetate, referred to as DBT-DOTG, is a typical organotin compound that plays an important role in many fields because of its unique physical and chemical properties. The following is a detailed description of its physical and chemical properties and main uses.

Physical and chemical properties
Dioctyltin diacetate is a colorless to light yellow transparent liquid with the following remarkable physical and chemical properties:

Molecular formula and structure: The molecular formula of dioctyltin diacetate is C20H36O4Sn, which consists of two acetic acid groups and two octyl chains connected to a tin atom through an ester bond. This structure gives it special physical and chemical properties.

Melting point and boiling point: Due to its molecular structure, dioctyltin diacetate is usually liquid at room temperature. Please refer to the specific product description for specific melting point and boiling point data, as these parameters may vary due to differences in purity and preparation processes. .

Density and solubility: The density of this compound is approximately 1.055-1.075 g/cm³ (20/4℃), which indicates that it is heavier than water. It is insoluble in water, but easily soluble in various organic solvents such as esters, ethers, ketones, alcohols, and lipids, which facilitates its application in organic synthesis.

Stability and toxicity: Dioctyltin diacetate is relatively stable at room temperature, but due to the presence of organotin, attention needs to be paid to its potential environmental and biological toxicity. Appropriate safety measures should be taken during handling and storage to avoid contact with skin and inhalation of vapors.

Refractive index: Its refractive index is 1.490-1.500. This property can be used for the identification and purity analysis of substances.

Main purposes
Plastic stabilizer: In the plastics industry, especially in polyvinyl chloride (PVC) products, dioctyltin diacetate is used as a heat stabilizer. It can effectively prevent discoloration and embrittlement caused by thermal degradation of PVC during processing and use, extend the service life of the product, and improve the transparency and mechanical properties of the product. Its lack of sulfide contamination and good lubricity make it an ideal choice for food packaging materials.

Catalyst: In the field of synthetic materials, dioctyltin diacetate can be used as a catalyst to promote various chemical reactions, such as esterification reactions, polymerization reactions, etc. It can speed up the reaction rate, improve the yield and selectivity of the product, and is easy to separate after the reaction, reducing the formation of by-products.

Coatings and inks: In the manufacturing of high-end coatings and printing inks, dioctyltin diacetate is used as an additive to improve the fluidity and surface gloss of the product, while enhancing the weather resistance and UV resistance, giving the product better appearance and longer service life.

Other special applications: In addition, dioctyltin diacetate is also used as an intermediate in organic synthesis, participating in the construction of complex organic molecules; it is used as an active ingredient in wood antisepsis and anti-mildew treatment, using its bactericidal and anti-mildew properties to protect wooden materials. Protection from microorganisms.

Conclusion
With its unique physical and chemical properties, dioctyltin diacetate has shown wide application value in many industrial fields such as plastics, coatings, inks and organic synthesis. Although its environmental issues cannot be ignored, with the advancement of science and technology and the development of green chemistry, finding more environmentally friendly alternatives and improving production processes has become a future trend. When using and handling such chemicals, environmental protection and occupational health and safety regulations should be strictly observed to ensure sustainable development.
Further reading:

Dabco amine catalyst/Low density sponge catalyst

High efficiency amine catalyst/Dabco amine catalyst

Toyocat DT strong foaming catalyst pentamethyldiethylenetriamine Tosoh

NT CAT PC-41

NT CAT PC-8

NT CAT A-33

DABCO 1027/foaming retarder – Amine Catalysts (newtopchem.com)

DBU – Amine Catalysts (newtopchem.com)

High Quality 3164-85-0 / K-15 Catalyst / Potassium Isooctanoate

High Quality Bismuth Octoate / 67874-71-9 / Bismuth 2-Ethylhexanoate

Dioctyltin diacetate supplier factory direct sales

When looking for reliable suppliers of dioctyltin diacetate, the factory direct sales model has become the preferred way for many buyers. This model directly links manufacturers and end users, eliminating intermediate links. It not only ensures that the source of product quality is controllable, but also optimizes the cost structure to a certain extent and makes prices more competitive. The following is an overview of some noteworthy dioctyltin diacetate suppliers and factory direct sales information:

  1. Xindian Chemical Materials (Shanghai) Co., Ltd.: As a professional chemical supplier, Xindian not only provides dioctyltin diacetate, but also is involved in a variety of catalyst fields. They emphasize the high quality of their products and customized services, suitable for customers looking for professional solutions.
  2. Guangdong Wengjiang Chemical Reagent Co., Ltd.: Wengjiang Reagent is known for its extensive chemical catalog, which includes dioctyltin diacetate. The company has many years of industry experience and can ensure the purity and stability of its products to meet the needs of customers in different industries.
  3. Hubei Xinmingtai Chemical: This Hubei-based company focuses on the supply of chemical raw materials, providing dibutyltin diacetate and other fine chemicals. Through factory direct sales, they promise to support all types of customers with reasonable prices and sufficient inventory.

When choosing factory direct sales, customers should consider the following key points:

  • Quality Control: Communicate directly with manufacturers to obtain detailed quality control reports and product specifications to ensure compliance with industry standards and specific application requirements.
  • Price advantage: Factory direct sales usually mean a shorter supply chain, which helps reduce purchase costs, but you must also compare multiple quotes to ensure cost-effectiveness.
  • Technical support and service: Excellent suppliers will provide professional technical consultation and after-sales support to help solve problems that may be encountered during use.
  • Delivery cycle and logistics: Confirm the manufacturer’s inventory status and logistics capabilities to ensure on-time delivery, especially for customers with urgent needs.

To sum up, the factory direct sales model provides convenience and benefits for purchasing dioctyltin diacetate. However, before deciding to cooperate, it is necessary to carefully examine the supplier’s reputation, qualifications and service capabilities to ensure the smooth progress of procurement activities.
Further reading:

Dabco amine catalyst/Low density sponge catalyst

High efficiency amine catalyst/Dabco amine catalyst

Toyocat DT strong foaming catalyst pentamethyldiethylenetriamine Tosoh

NT CAT PC-41

NT CAT PC-8

NT CAT A-33

DABCO 1027/foaming retarder – Amine Catalysts (newtopchem.com)

DBU – Amine Catalysts (newtopchem.com)

High Quality 3164-85-0 / K-15 Catalyst / Potassium Isooctanoate

High Quality Bismuth Octoate / 67874-71-9 / Bismuth 2-Ethylhexanoate

Dioctyltin diacetate Price Quotes

Dioctyltin diacetate, as an important organotin compound, is widely used as plastic stabilizer, heat stabilizer and catalyst in the processing of certain polymers. Its price is affected by many factors, including raw material costs, market supply and demand conditions, policies and regulations, and changes in the global economic environment. The following is a comprehensive analysis of the price trend of dioctyltin diacetate.

Market Overview
Recently, the dioctyltin diacetate market has shown a volatile trend. Due to its irreplaceability in PVC products, coatings, and some specialty chemicals, demand is relatively stable. However, price fluctuations mainly come from changes in upstream raw material prices and tightening environmental policies. Since 2024, the improvement of environmental protection standards worldwide has led to the closure or reduction of production of some small chemical plants, reducing market supply and thus pushing up prices.

Cost factors
The production cost of dioctyltin diacetate is closely related to the basic raw materials such as octanoic acid, diacetic acid and metallic tin. In recent years, with the fluctuation of metal tin prices in the international market, it has directly affected the production cost of dioctyltin diacetate. In addition, rising energy prices have also increased energy consumption costs in the production process, further pushing up the price of finished products. Recently, although raw material prices have fluctuated, they have generally remained at a high level, making the production cost of dioctyltin diacetate remain high.

Balance of supply and demand
From the demand side, with the gradual recovery of the global economy and the recovery of demand in industries such as plastic products and architectural coatings, the demand for dioctyltin diacetate has grown steadily. Especially in the field of environmentally friendly heat stabilizers, because they are more environmentally friendly than traditional lead salt stabilizers, market demand continues to expand. However, on the supply side, due to stricter environmental regulations, some production capacity that does not meet environmental standards has been restricted or eliminated, resulting in relatively tight market supply, thus supporting product prices.

Policy Impact
Policy is an important external factor affecting the price of dioctyltin diacetate. Countries and regions have formulated strict regulations on the use and emission of organotin compounds to reduce environmental pollution. For example, the EU’s REACH regulations impose strict restrictions on the use of specific organotin compounds, which prompts the industry to transition to more environmentally friendly alternatives and also affects the market structure and price trend of dioctyltin diacetate. As one of the world’s major producers, China’s adjustments to its environmental protection policies, such as its “Blue Sky Defense” and other actions, have had a direct impact on the production capacity and cost control of domestic manufacturers, which in turn affects prices.

Future Outlook
It is expected that in the short term, the price of dioctyltin diacetate will continue to be affected by cost pressure and supply and demand, and remain at a relatively high level. In the long term, as technology advances and environmental protection requirements continue to increase, the industry may transition to more efficient and environmentally friendly production processes while looking for alternatives to reduce reliance on specific organotin compounds. In addition, the stability of the global supply chain and the trend of energy prices will also become key variables affecting the price of dioctyltin diacetate.

To sum up, the price trend of dioctyltin diacetate is a complex and changeable system, and it is necessary to pay close attention to changes in market dynamics, policy guidance and cost structure. For relevant companies, rational planning of inventory, strengthening cost control, and timely adjustment of business strategies are the keys to coping with the current market environment.
Further reading:

Dabco amine catalyst/Low density sponge catalyst

High efficiency amine catalyst/Dabco amine catalyst

Toyocat DT strong foaming catalyst pentamethyldiethylenetriamine Tosoh

NT CAT PC-41

NT CAT PC-8

NT CAT A-33

DABCO 1027/foaming retarder – Amine Catalysts (newtopchem.com)

DBU – Amine Catalysts (newtopchem.com)

High Quality 3164-85-0 / K-15 Catalyst / Potassium Isooctanoate

High Quality Bismuth Octoate / 67874-71-9 / Bismuth 2-Ethylhexanoate