Description

Dibutyltin Oxide CAS NO 818-08-6 is a versatile organotin compound widely used as a catalyst and intermediate in industrial synthesis. Its primary value lies in its exceptional catalytic efficiency for polyurethane and silicone elastomer production, enabling faster reaction times and improved product performance. This chemical is essential for manufacturers in the polymer, coatings, and specialty chemical sectors seeking reliable and effective tin-based catalysts.

Application

• Polyurethane Catalyst: A key catalyst for the production of flexible and rigid polyurethane foams, elastomers, and coatings.
• Silicone Cross-linking Agent: Used as a catalyst in the curing and cross-linking of silicone rubbers and sealants.
• Esterification & Transesterification Catalyst: Facilitates the synthesis of plasticizers, lubricants, and biodiesel through esterification and transesterification reactions.
• PVC Stabilizer Intermediate: Serves as a crucial precursor in the manufacture of dibutyltin-based heat stabilizers for PVC (polyvinyl chloride) products.
• Glass Coating Precursor: Used in the formulation of transparent, conductive coatings for glass and other substrates.
• Adhesive & Sealant Formulations: Enhances the curing properties and durability of high-performance industrial adhesives and sealants.

Basic Information

Product Name	Dibutyltin Oxide
CAS No.	818-08-6
Molecular Formula	C8H18OSn
Molecular Weight	248.94 g/mol
Synonyms	Dibutyloxotin; Dibutyltin Oxid; Stannane, dibutyloxo-; DBTO; Butylstannoic Acid; Tin, dibutyloxo-; Bis(butyl)tin Oxide; Oxobis(butyl)stannane
EINECS	212-449-1

Quality Control

Our Dibutyltin Oxide is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We adhere to relevant industry standards and can provide material tailored to specific application requirements. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is available for every shipment upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (as SnO)	≥ 98.0 %
Tin (Sn) Content	Contact for details
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.