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Dioctyltin diacetate (DOTA) exhibits good lightstability in PVC.
Dioctyltin diacetate (DOTA) is suitable for can and coil coatings, elastomers, car renishing, architectural, and other industrial coatings; and for 1p/2p adhesives and sealants.
Dioctyltin diacetate (DOTA) can be used in esterication and trans-esterication reactions.
CAS Number: 68299-15-0
Molecular Formula: C36H72O4Sn
Molecular Weight: 687.66
EINECS Number: 269-595-4
Synonyms: Advastab 17MOL, Dioctyltin bis(2-ethylhexyl thioglycolate), 2-Ethylhexyl 10-ethyl-4,4-dioctyl-7-oxo-8-oxa-3,5-dithia-4-stannatetradecanoate, 17MOK, Dioctyltinbis(2-ethylhexyl mercaptoacetate), Dioctyltin bis(2-ethylhexylmercaptoacetate), EINECS 239-622-4, RA3NRC891C, Di-n-octyltin-2-ethylhexyl-dimercaptoethanoate, Tin, dioctyl-, bis(2-ethylhexylthioglycolate), Di-n-octyltin bis(2-ethylhexyl mercaptoacetate), KS 2000A10, BRN 4029870, Di-n-octyltin-dithioglycolic acid 2-ethylhexyl ester, Tin, bis(mercaptoacetate)dioctyl-, bis(2-ethylhexyl) ester, 8-Oxa-3,5-dithia-4-stannatetradecanoic acid, 10-ethyl-4,4-dioctyl-7-oxo-, 2-ethylhexyl ester, DTXSID8029735, Bis(carboxymethylthio)dioctylstannylene, di(2-ethylhexyl) ester, EC 239-622-4, Acetic acid, 2,2'-((dioctylstannylene)bis(thio))bis-, di-2-ethylhexyl ester, DIOCTYLLTIN BIS(2-ETHYLHEXYLMERCAPTOACETATE), TIN, BIS((CARBOXYMETHYL)THIO)DIOCTYL-, BIS(2-ETHYLHEXYL) ESTER, ACETIC ACID, ((DIOCTYLSTANNYLENE)DITHIO)DI-, BIS(2-ETHYLHEXYL) ESTER, DTXCID209735, 15571-58-1, Advastab 17 mok, Bis(2-ethylhexyl thioglycolato)dioctyltin, Bis(2-ethylhexyl) ((dioctylstannylene)dithio)diacetate, Di-(n-octyl)tin S,S'-bis(isooctylmercaptoacetate), Dioctyltinmercaptide (>85%), UNII-RA3NRC891C, Irgastab 17 MOK, Di-n-octyltin bis(2-ethylhexyl thioglycolate), Dioctyltin isooctylthioglycolate, MFCD30718223, Dioctyltin bis(isooctylmercaptoacetate), NS00051487, Di-n-octyltin-2-ethyl-n-hexyldithioglycollate, Dioctyltin S,S'-bis(2-ethylhexylthioglycolate), Dioctyltin bis(2-ethylhexylthioglycolate), min 75%, Q27288024, 2-ethylhexyl 10-ethyl-4,4-dioctyl-7-oxo-8-oxa-3,5-dithia-4-stannatetradecan-1-oate, 2-Ethylhexyl 10-ethyl-4,4-dioctyl-7-oxo-8-oxa-3,5-dithia-4-stannatetradecanoate, 14CI, 239-622-4, DIOCTYLDINEODECANOATETIN;bis(neodecanoyloxy)dioctylstannane;Stannane, dioctylbis(1-oxoneodecyl)oxy-;dioctylbis[(1-oxoneodecyl)oxy]-stannan;dioctylbis[(1-oxoneodecyl)oxy]-Stannane;Dioctyltindineodecanoate;Neodecanoic acid, 1,1'-(dioctylstannylene) ester;Dioctyltin dinonanoate
Dioctyltin diacetate (DOTA) is also used in paints.
Dioctyltin diacetate (DOTA), also known as advastab 17 mok, belongs to the class of organic compounds known as dicarboxylic acids and derivatives.
Dioctyltin diacetate (DOTA) by TIB Chemicals is organotin carboxylate.
Dioctyltin diacetate (DOTA) is used for polyurethance coatings.
Dioctyltin diacetate (DOTA) is also used in the reaction between isocyanates and alcohols.
Dioctyltin diacetate (DOTA) is an organotin compound widely used in the chemical industry, primarily valued for its effectiveness as a heat stabilizer and catalyst in the production of plastics, especially polyvinyl chloride (PVC).
Dioctyltin diacetate (DOTA) belongs to a class of organotin chemicals characterized by the presence of tin atoms bonded to organic groups—in this case, dioctyl groups and dithioglycolate ligands—which impart unique chemical properties that enhance its performance in industrial processes.
One of the most important applications of Dioctyltin diacetate (DOTA) is its role in preventing the degradation of polymers during high-temperature processing.
When plastics like PVC are exposed to heat during extrusion, molding, or other manufacturing steps, they can degrade, losing their mechanical strength and discoloring.
Dioctyltin diacetate (DOTA) works by stabilizing the polymer chains and scavenging harmful byproducts, thereby maintaining the material’s integrity, flexibility, and appearance throughout its lifespan.
Dioctyltin diacetate (DOTA) is a tin mercaptide catalyst.
Exhibits hydrolytic stability and selectivity.
Dioctyltin diacetate (DOTA) is a multi-purpose catalyst in silane terminated polyolens.
Dioctyltin diacetate (DOTA) is a catalyst that can be used in esterication and transesterication reactions.
Melting point: <0°C
Boiling point: 252.5℃ [at 101 325 Pa]
Density: 1.03 g/cm³
Vapor pressure: 0.001-0.002 Pa at 20℃
Refractive index: 1.4680
Flash point: 140°C
Specific Gravity: 1.03
Water Solubility: 168 μg/L at 20℃
Dioctyltin diacetate (DOTA) accelerates the chemical interactions between the various monomers, improving processing times and enabling manufacturers to fine-tune the properties of the resulting polymer, such as foam density, elasticity, and durability.
This makes it especially valuable in industries ranging from automotive to construction and furniture manufacturing.
Due to its organotin structure, Dioctyltin diacetate (DOTA) must be handled with care, as organotin compounds can exhibit toxicity to humans and the environment.
Proper safety measures, including protective equipment and controlled usage, are essential to minimize exposure risks.
Nonetheless, its ability to enhance polymer performance and processing efficiency has made Dioctyltin diacetate (DOTA) a critical component in modern polymer chemistry.
Dioctyltin diacetate (DOTA)’s performance is influenced by its compatibility with other additives and processing aids, making it a versatile component in complex formulations.
Its hydrophobic octyl groups improve its dispersibility in non-polar polymer matrices, while the sulfur-containing dithioglycolate moiety interacts strongly with metal ions and free radicals, providing both stabilizing and catalytic properties simultaneously.
Dioctyltin diacetate (DOTA) into the PVC formulation, manufacturers can significantly reduce the breakdown of polymer chains by scavenging hydrochloric acid released during degradation and neutralizing free radicals, thus preserving the structural and aesthetic qualities of the plastic.
Dioctyltin diacetate (DOTA) is employed as a catalyst in the production of polyurethanes and other specialized polymers, where it accelerates the chemical reactions between polyols and isocyanates.
This catalytic activity enhances production efficiency by reducing cure times and improving the uniformity of polymer cross-linking, which directly impacts the physical properties of the resulting foams and elastomers.
These materials find widespread application in automotive seating, insulation, footwear, and flexible cushioning, where durability and precise mechanical characteristics are essential.
In addition to its stabilizing effects, Dioctyltin diacetate (DOTA) acts as a catalyst in polyurethane production and other polymerization reactions.
Dioctyltin diacetate (DOTA) is a specialized organotin compound extensively employed in the plastics and polymer manufacturing sectors due to its dual functionality as both a stabilizer and a catalyst.
Its molecular structure consists of a central tin atom bonded to two octyl groups—long carbon chains that provide hydrophobic properties—and to dithioglycolate ligands, which contain sulfur atoms capable of forming strong bonds with the tin center.
This unique configuration grants the compound exceptional chemical stability and reactivity, enabling it to interact efficiently with polymer matrices and processing chemicals.
One of the primary industrial uses of Dioctyltin diacetate (DOTA) lies in its capacity to serve as a heat stabilizer for polyvinyl chloride (PVC).
During the manufacture and processing of PVC, the material is subjected to elevated temperatures that can cause thermal degradation, leading to discoloration, loss of mechanical strength, and reduced lifespan of the finished product.
Uses Of Dioctyltin diacetate (DOTA):
Dioctyltin diacetate (DOTA)’s combined abilities to both stabilize and catalyze polymer systems make it an indispensable additive in modern plastics and polymer chemistry, supporting the production of durable, high-performance materials used in countless industrial and consumer applications worldwide.
Dioctyltin diacetate (DOTA) finds extensive application in the plastic industry, where its primary use is as a thermal stabilizer for polyvinyl chloride (PVC), a widely produced and versatile plastic.
During the processing of PVC, the material is subjected to high temperatures that can cause dehydrochlorination—a process where hydrochloric acid is released, leading to discoloration, loss of flexibility, and deterioration of mechanical properties.
By incorporating Dioctyltin diacetate (DOTA) into PVC formulations, manufacturers can effectively inhibit this degradation process, thereby significantly enhancing the heat resistance, longevity, and overall appearance of PVC products.
This application is especially important in the production of rigid PVC items such as window frames, pipes, and siding, as well as flexible products like cables, films, and flooring materials.
Beyond its stabilizing role in PVC, Dioctyltin diacetate (DOTA) serves as a catalyst in polyurethane synthesis, where it accelerates the reaction between isocyanates and polyols to produce polyurethane foams, coatings, adhesives, and elastomers.
This catalytic function is critical in optimizing manufacturing efficiency and controlling the physical properties of the final products.
For instance, in flexible polyurethane foams used for furniture cushioning and automotive seating, Dioctyltin diacetate (DOTA) helps ensure uniform cell structure and improved durability, while in rigid foams employed for insulation, it contributes to better thermal resistance and mechanical strength.
Additionally, Dioctyltin diacetate (DOTA) is sometimes used as a processing aid and additive in polymer blends and composites, where it improves the compatibility and dispersion of different materials within complex formulations.
Dioctyltin diacetate (DOTA) is predominantly utilized as an effective heat stabilizer in the manufacturing and processing of polyvinyl chloride (PVC) plastics, where it plays a critical role in preventing thermal degradation and discoloration that often occur when PVC is exposed to high temperatures during extrusion, molding, or other fabrication processes.
By stabilizing the polymer chains, this compound ensures that the final plastic products maintain their mechanical strength, flexibility, and clarity, which is essential for applications ranging from construction materials such as pipes and window profiles to consumer goods like cables and flooring.
In addition to its stabilizing properties, Dioctyltin diacetate (DOTA) functions as an important catalyst in the production of polyurethanes, accelerating the chemical reactions between polyols and isocyanates, thereby improving the efficiency and control of the polymerization process.
This catalytic activity is particularly valuable in the manufacture of flexible and rigid polyurethane foams, coatings, adhesives, and elastomers, which are widely used across automotive, furniture, insulation, and footwear industries to produce materials with tailored mechanical properties such as enhanced durability, elasticity, and resistance to environmental stressors.
Furthermore, due to its unique chemical structure that allows strong interaction with various polymer matrices and additives, Dioctyltin diacetate (DOTA) is sometimes employed as a processing aid to improve the compatibility and dispersion of other ingredients within complex formulations.
This enhances the overall quality and consistency of polymer products by preventing phase separation or degradation of sensitive components during manufacturing.
Because of its versatility, Dioctyltin diacetate (DOTA) is also explored in specialized applications including the stabilization of certain elastomers and the synthesis of advanced polymer composites, where precise control of thermal and mechanical properties is required to meet stringent performance standards.
Safety Profile Of Dioctyltin diacetate (DOTA):
Prolonged or repeated exposure—whether through inhalation, skin contact, or ingestion—may result in symptoms such as skin and eye irritation, respiratory tract discomfort, and in more severe cases, systemic toxicity that affects the nervous system, liver, and kidneys.
One of the critical hazards associated with Dioctyltin diacetate (DOTA) is its potential for acute and chronic toxicity, particularly through dermal absorption and inhalation of vapors or dust during industrial use.
Workers involved in the manufacturing or handling of this chemical are at risk if adequate personal protective equipment (PPE) and engineering controls, such as ventilation systems, are not properly implemented.
Inhalation of aerosols or dust can cause respiratory irritation and, in high concentrations, may lead to more serious respiratory conditions. Skin exposure can cause dermatitis, sensitization, and in some cases, systemic poisoning if the compound penetrates the skin barrier.
Dioctyltin diacetate (DOTA), like many organotin compounds, poses several significant health and environmental hazards that require careful consideration and strict handling procedures.
From a toxicological perspective, exposure to this compound can lead to adverse effects on multiple organ systems, primarily due to its ability to interfere with biological processes at the cellular level.
