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Dioctyltin di(2-hexylhexanoate)-solution is involved in the vulcanization of silicones and a stabilizer in polyvinyl chloride (PVC).
Dioctyltin di(2-hexylhexanoate)-solution acts as a rust inhibitor for polyurethanes, polyols, silicones and as a fuel additive.
Dioctyltin di(2-hexylhexanoate)-solution has been used as a catalyst in a protocol for the covalent attachment of poly(ethylene glycol) (PEG) to silicon oxide to form a hydrophilic non-fouling surface.
CAS Number: 77-58-7
Molecular Formula: C32H64O4Sn
Molecular Weight: 631.56
EINECS Number: 201-039-8
Synonyms: Dibutyltin dilaurate, 77-58-7, Butynorate, Davainex, Tinostat, Di-n-butyltin dilaurate, Stanclere DBTL, Dibutyltin laurate, Stabilizer D-22, Dibutylbis(lauroyloxy)tin, TVS Tin Lau, T 12 (catalyst), Dibutylbis(laurato)tin, Ongrostab BLTM, Dibutyltin didodecanoate, Stavinor 1200 SN, Dibutyltin n-dodecanoate, Fomrez sul-4, Thermolite T 12, Dibutylstannylene dilaurate, Kosmos 19, Therm chek 820, Dibutyl-zinn-dilaurat, Mark 1038, Neostann U 100, Cata-Chek 820, Lankromark LT 173, TIN DIBUTYL DILAURATE, Bis(lauroyloxy)di(n-butyl)stannane, Tin, dibutylbis(lauroyloxy)-, Laustan-B, Dibutylstannium dilaurate, Stannane, dibutylbis[(1-oxododecyl)oxy]-, TVS-TL 700, Laudran di-n-butylcinicity, Stannane, bis(lauroyloxy)dibutyl-, Stannane, dibutylbis(lauroyloxy)-, Lauric acid, dibutylstannylene salt, Dibutyl-tin-dilaurate, TN 12 (catalyst), Lauric acid, dibutyltin deriv., Stavincor 1200 SN, Mark BT 11, Mark BT 18, Butyl norate, Stannane, bis(dodecanoyloxy) di-n-butyl-, KS 20, TN 12, Dibutylbis(lauroxy)stannane, Tin, di-n-butyl-, di(dodecanoate), Dibutylbis(1-oxododecyl)oxy)stannane, Lauric acid, dibutylstannylene deriv., Stabilizer D 22, Dibutyltin dillaurate, Metacure T-12, CCRIS 4786, Dibutyl-zinn-dilaurat [German], DXR 81, DTXSID6024961, Dabco T-12, di-n-Butylin dilaurate, HSDB 5214, Laudran di-n-butylcinicity [Czech], NSC 2607, SM 2014C, EINECS 201-039-8, ADK STAB BT-11, Stannane, bis(dodecanoyloxy)di-n-butyl, Stannane, dibutylbis((1-oxododecyl)oxy)-, UNII-L4061GMT90, AI3-26331, DTXCID404961, Lauric acid, dibutyltin derivative, Dodecanoic acid, 1,1'-(dibutylstannylene) ester, L4061GMT90, Dibutylbis(1-oxododecyloxy)stannane, NSC-2607, Bis(dodecanoyloxy)di-n-butylstannane, dibutylbis((1-oxododecyl)oxy)stannane, Dibutylbis[(1-oxododecyl)oxy]stannane, Lauric acid, dibutylstannylene derivative, EC 201-039-8, DIBUTYL-ZINN-DILAURAT (GERMAN), 201-039-8, LAUDRAN DI-N-BUTYLCINICITY (CZECH), Laudran, Lauric acid, dibutyltin deriv, LaustanB, Fomrez sul4, Stabilizer D22, Lauric acid
Dioctyltin di(2-hexylhexanoate)-solution is an organotin catalyst dissolved in a special solvent.
Dioctyltin di(2-hexylhexanoate)-solution is used in paints and coatings.
Dioctyltin di(2-hexylhexanoate)-solution consists of two laurate groups and two butyl groups coordinated to a tin(IV) atom.
Dioctyltin di(2-hexylhexanoate)-solution functions effectively as a catalyst in the formation of urethane linkages between isocyanates and polyols, which is a critical step in manufacturing flexible foams, adhesives, sealants, coatings, and elastomers.
Its low volatility and high reactivity make it ideal for processes that require precise control over reaction rates.
Dioctyltin di(2-hexylhexanoate)-solution is also used in transesterification reactions, silicone cross-linking, and condensation of silanol groups, especially in the rubber and sealant industries.
Dioctyltin di(2-hexylhexanoate)-solution appears as a clear to pale yellow oily liquid and is known for its catalytic properties in chemical reactions, especially in the production of polyurethanes, silicones, and esters.
Dioctyltin di(2-hexylhexanoate)-solution is a dibutyltin(IV) ester of lauric acid.
Dioctyltin di(2-hexylhexanoate)-solution is an organotin compound that consists of a tin atom bonded to two butyl groups and two laurate (dodecanoate) groups, making it a metal-organic coordination complex widely used in various industrial applications.
Dioctyltin di(2-hexylhexanoate)-solution is a valuable industrial chemical that combines the functional benefits of organotin stabilizers and catalysts with enhanced practical advantages due to its solution state, making it a preferred additive in polymer processing and synthesis industries where performance and ease of use are critical.
Melting point: 22–24 °C
Boiling point: >204 °C/12 mm
Density: 1.066 g/mL at 25 °C (lit.)
Vapor pressure: 0.2 mm Hg (160 °C)
Refractive index: n20/D 1.471 (lit.)
Flash point: >230 °F
Storage temp.: Store below +30 °C
Solubility: <1.43 mg/L
Form: Oily Liquid
Color: Clear pale yellow
Specific Gravity: 1.066
Water solubility: <0.1 g/100 mL at 20 °C
Freezing point: 8 °C
Merck: 14,3038
BRN: 4156980
Exposure limits: ACGIH: TWA 0.1 mg/m³; STEL 0.2 mg/m³ (Skin)
NIOSH: IDLH 25 mg/m³; TWA 0.1 mg/m³
Stability: Combustible. Incompatible with strong oxidizing agents. May be air sensitive.
InChIKey: UKLDJPRMSDWDSL-UHFFFAOYSA-L
LogP: 3.120
Dioctyltin di(2-hexylhexanoate)-solution is an organotin-based chemical compound formulated in liquid form to improve its handling characteristics and facilitate its controlled use in various industrial processes, particularly in the fields of plastics and polymer chemistry.
The active ingredient, Dioctyltin di(2-hexylhexanoate)-solution, is a type of organotin carboxylate, where a tin atom is covalently bonded to two octyl groups (which provide hydrophobicity) and two molecules of 2-hexylhexanoic acid (a branched carboxylic acid that enhances solubility and thermal stability).
This specific structural configuration makes it highly effective as a thermal stabilizer and processing aid, especially when used in the manufacture of flexible and rigid polyvinyl chloride (PVC) products.
The solution format—which may be an oily or solvent-diluted form—offers numerous practical benefits, such as improved dispersion in plasticizers or resin blends, easier dosing in automated systems, and reduced dust formation compared to powdered or solid tin stabilizers.
By existing as a liquid, the solution also minimizes the risk of airborne exposure and allows for more homogeneous mixing, which is essential for ensuring uniform protection of PVC against thermal degradation.
This is particularly crucial during high-temperature operations such as extrusion, calendaring, and injection molding, where unprotected PVC can rapidly degrade and release corrosive hydrogen chloride (HCl) gas, leading to discoloration and material failure.
In its stabilizing role, Dioctyltin di(2-hexylhexanoate)-solution not only neutralizes the HCl released during processing but also helps to maintain the mechanical integrity, color, and transparency of the final PVC product over time, making it especially suitable for high-quality films, wires and cables, profiles, and medical-grade materials.
Its effectiveness at relatively low concentrations and its compatibility with both phthalate and non-phthalate plasticizers contribute to its popularity in both traditional and more environmentally-conscious PVC formulations.
Beyond PVC, Dioctyltin di(2-hexylhexanoate)-solution is also used as a catalyst in the synthesis of polyurethanes, where it promotes the reaction between polyols and isocyanates to form flexible foams, rigid foams, and elastomeric materials with improved curing properties and dimensional stability.
In coatings and adhesives, the tin compound may contribute to enhanced cross-linking, resulting in better chemical resistance and mechanical strength of the cured materials.
Despite its industrial utility, Dioctyltin di(2-hexylhexanoate)-solution—like many organotin compounds—must be used with caution due to its potential toxicity to humans and aquatic life.
Long-term exposure can cause damage to the immune and nervous systems, and it may also have endocrine-disrupting effects.
Consequently, strict regulatory guidelines govern its handling, labeling, and disposal, especially in regions with stringent chemical safety standards such as the European Union under REACH legislation.
Protective measures such as local exhaust ventilation, protective gloves and goggles, and proper waste collection systems are typically required in workplaces that use this substance.
In conclusion, Dioctyltin di(2-hexylhexanoate)-solution is a chemically advanced, highly functional organotin compound used extensively in stabilizing and catalyzing polymer systems, with its solution form offering increased efficiency, safety, and ease of use in industrial environments—though always under strict regulatory oversight to mitigate health and environmental risks.
Dioctyltin di(2-hexylhexanoate)-solution finds applications in the synthesis of polyurethanes and silicones, where it acts as an efficient catalyst promoting the reaction between isocyanates and polyols or silanes.
This catalytic role is critical in reducing processing times and improving the final material properties such as elasticity, hardness, and chemical resistance, which are essential for products ranging from flexible foams and adhesives to sealants and coatings.
The solution format allows easy integration into manufacturing lines, supporting continuous production and consistent quality.
Because of the toxicological and environmental concerns associated with organotin compounds, the solution form also facilitates safer handling and reduces the risks of dust formation or direct skin contact, although strict safety protocols remain necessary.
Proper storage, containment, and use of personal protective equipment are essential to minimize occupational exposure, while environmental precautions are required to prevent release into water bodies where organotin compounds can exert toxic effects on aquatic organisms.
Uses:
One of the most common and important uses of Dioctyltin di(2-hexylhexanoate)-solution is as a heat stabilizer in the processing of polyvinyl chloride (PVC). During manufacturing and processing, PVC is subjected to high temperatures that can cause it to break down and release hydrogen chloride gas (HCl), which leads to discoloration, brittleness, and loss of strength.
Dioctyltin di(2-hexylhexanoate)-solution acts as a thermal stabilizer by neutralizing HCl and preventing this degradation, thereby maintaining the PVC’s flexibility, transparency, and long-term durability.
Due to its effectiveness and relative safety compared to other organotin compounds, Dioctyltin di(2-hexylhexanoate)-solution is sometimes chosen for medical-grade applications, such as in the production of blood bags, IV tubing, and other flexible medical devices made from plasticized PVC.
Its role here is to ensure long-term thermal and chemical stability without compromising biocompatibility, though usage is strictly controlled under regulatory guidelines.
Dioctyltin di(2-hexylhexanoate)-solution also functions as a catalyst in the synthesis of polyurethanes, which are widely used in foams, sealants, adhesives, and coatings.
In this role, it accelerates the chemical reaction between isocyanates and polyols, which is necessary to form the final polyurethane material.
Its catalytic activity helps to control the reaction rate, reduce curing times, and improve the mechanical properties of the finished products.
In certain specialized formulations, Dioctyltin di(2-hexylhexanoate)-solution may be used as a catalyst in the curing of silicone-based materials, especially where thermal stability and controlled cross-linking are essential.
This application is common in electronics, sealants, and medical-grade silicone products, where precise control of curing and mechanical strength is needed.
Because of its compatibility with plasticizers, especially phthalate and non-phthalate types, it is also used in flexible PVC items such as cables, synthetic leather, flooring, wall coverings, and toys.
Dioctyltin di(2-hexylhexanoate)-solution ensures these products retain their flexibility and resist degradation over time, even when exposed to elevated temperatures and UV light.
Dioctyltin di(2-hexylhexanoate)-solution contributes to UV and oxidative stability, making it useful in outdoor applications of PVC and other polymers that are constantly exposed to sunlight, oxygen, and fluctuating temperatures.
Products such as window profiles, siding, and outdoor piping benefit from its stabilizing properties that help extend the lifespan of plastic materials in harsh environmental conditions.
Dioctyltin di(2-hexylhexanoate)-solution is also useful as a catalyst for transesterication and for the room temperature vulcanization of silicones.
Dioctyltin di(2-hexylhexanoate)-solution is also used as a stabilizer in polyvinyl chloride, vinyl ester resins, lacquers, and elastomers.
Dioctyltin di(2-hexylhexanoate)-solution is also added to animal feed to remove cecal worms, roundworms, and tapeworms in chickens and turkeys and to prevent or provide treatment against hexamitosis and coccidiosis.
Dioctyltin di(2-hexylhexanoate)-solution can be used as PVC heat stabilizers, and it is the earliest used varieties in organotin stabilizers, heat resistance is less than tributyltin maleate, but it has excellent lubricity, weather resistance and transparency can be ok, and it has good compatibility with plasticizers, non-blooming, non-sulde pollution, no adverse eects on heat sealing and printability.
Safety Profile:
One of the primary hazards of Dioctyltin di(2-hexylhexanoate)-solution is that it can be harmful if inhaled, swallowed, or absorbed through the skin.
Organotin compounds are known to affect the immune and nervous systems, and exposure may cause symptoms such as headaches, nausea, dizziness, fatigue, and in more severe cases, neurotoxicity or immune suppression. Chronic exposure may also cause organ damage, particularly to the liver and kidneys.
The chemical may cause skin irritation, redness, or dermatitis upon contact, especially with repeated or prolonged exposure.
Eye contact can result in stinging, redness, and watering, and in some cases, more serious irritation or chemical burns.
Dioctyltin di(2-hexylhexanoate)-solution is generally recommended to wear protective gloves, goggles, and suitable clothing when handling it.
Some organotin compounds, including dioctyltin derivatives, have been linked to reproductive and developmental toxicity in animal studies.
Although specific data on Dioctyltin di(2-hexylhexanoate)-solution may be limited, similar substances have shown potential to interfere with hormone regulation or affect fetal development, prompting concern for pregnant workers or those of childbearing age.
Dioctyltin di(2-hexylhexanoate)-solution is very toxic to aquatic organisms, including fish, crustaceans, and algae.
Dioctyltin di(2-hexylhexanoate)-solution can cause long-term damage to aquatic ecosystems due to its persistence and potential to bioaccumulate.
For this reason, careful handling, storage, and disposal are required to prevent release into drains, soil, or waterways.
Regulatory authorities such as the EU REACH program and the U.S. EPA often classify such chemicals as hazardous to the environment.
