Description

Di-T-Butyltin Oxide is a versatile organotin compound widely used as a catalyst and intermediate in high-performance polymer synthesis. Its value lies in its ability to efficiently promote polycondensation reactions, leading to materials with superior thermal and mechanical properties. This product is essential for manufacturers in the plastics, coatings, and specialty chemical industries seeking to produce advanced polyesters, polycarbonates, and silicone elastomers.

Application

• Primary catalyst for the production of polyesters (PET, PBT) and polycarbonates.
• Key intermediate in the synthesis of other organotin stabilizers and catalysts.
• Used as a catalyst in silicone cross-linking and room-temperature vulcanization (RTV) processes.
• Employed in the manufacture of high-temperature, heat-resistant coatings and adhesives.
• Facilitates esterification and transesterification reactions in fine chemical synthesis.
• Acts as a precursor for tin-based catalysts used in polyurethane foam production.

Basic Information

Product Name	Di-T-Butyltin Oxide
CAS No.	19140-19-3
Molecular Formula	C8H18OSn
Molecular Weight	248.93 g/mol
Synonyms	Bis(tert-butyl)tin Oxide; Di-tert-butylstannane Oxide; Di-tert-butyltin Oxide; 2,2-Dimethylpropyl(1,1-dimethylethyl)stannane Oxide; Stannane, bis(1,1-dimethylethyl)oxo-; Oxobis(tert-butyl)stannane; DBTO; Catalyst F; Thermolite 12
EINECS	242-865-5

Quality Control

Our Di-T-Butyltin Oxide is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm identity, assay, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
Tin (Sn) Content	46.0 - 48.0 %
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm

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