Description

Dioctyltin is a versatile organotin compound widely recognized for its efficacy as a catalyst and stabilizer in industrial polymer chemistry. Its primary commercial value lies in its ability to accelerate polyurethane and polyvinyl chloride (PVC) production while enhancing the thermal stability of the final materials. This makes it an essential raw material for manufacturers in the plastics, coatings, and adhesives sectors seeking to improve process efficiency and product performance.

Application

• Polyurethane Catalyst: Primarily used as a highly effective catalyst in the production of flexible and rigid polyurethane foams, elastomers, and coatings.
• PVC Heat Stabilizer: Acts as a critical component in non-toxic, calcium-based stabilizer systems for rigid and flexible PVC applications, including pipes, profiles, and films.
• Silicone Curing Agent: Employed as a catalyst in the curing (cross-linking) of silicone rubbers and resins.
• Esterification & Transesterification Catalyst: Facilitates key reactions in the synthesis of plasticizers, lubricants, and biodiesel.
• Adhesive & Sealant Formulation: Used to catalyze the curing process in high-performance polyurethane-based adhesives and sealants.
• Coating Resins: Catalyzes the formation of polyurethane and other coating resins for automotive, industrial, and protective finishes.

Basic Information

Product Name	Dioctyltin
CAS No.	15231-44-4
Molecular Formula	C16H34OSn
Molecular Weight	353.15 g/mol
Synonyms	Dioctyltin Oxide; Dioctyl Oxostannane; Bis(octyl)tin Oxide; Stannane, dioctyloxo-; Octyltin Oxide; Tin, dioctyloxo-; Catalyst T-9 (trade name related); Stanclere T-2500 (trade name related)
EINECS	239-255-5

Quality Control

Our Dioctyltin is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical tests including assay, identification, and impurity profiling. A Certificate of Analysis (COA) detailing all specifications and test results is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from incompatible materials such as strong bases and organic solvents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to minimize exposure to moisture and air.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms to standard
Assay (Sn content)	Min. 32.0 %
Tin (Sn) Content	32.0 - 34.0 %
Loss on Drying	Max. 1.0 %
Heavy Metals (as Pb)	Max. 20 ppm
Residue on Ignition	Max. 0.5 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.