Description

Dioctylthioxostannane is an organotin compound, specifically a dialkyltin sulfide derivative, widely recognized for its role as a high-performance heat stabilizer and catalyst. Its primary commercial value lies in its exceptional ability to prevent thermal degradation and maintain the structural integrity of polymers during high-temperature processing. This makes it a critical additive for manufacturers in the PVC (polyvinyl chloride) stabilization and polyurethane (PU) catalyst sectors, where product longevity and processing efficiency are paramount.

Application

• Primary Heat Stabilizer for Rigid PVC: Used in pipes, fittings, profiles, and siding to prevent discoloration and maintain mechanical properties during extrusion and molding.
• Co-stabilizer in Flexible PVC Formulations: Enhances the performance of primary stabilizers in applications like cables, flooring, and synthetic leather.
• Catalyst for Polyurethane (PU) Foams: Promotes the reaction between polyols and isocyanates, particularly in the production of flexible and rigid foams.
• Catalyst in Silicone Rubber Curing: Accelerates the cross-linking (curing) process in condensation-cure silicone elastomers.
• Intermediate for Other Organotin Compounds: Serves as a key synthetic precursor in the manufacture of more specialized organotin stabilizers and catalysts.
• Lubricant Additive: Functions as an anti-wear and extreme pressure agent in certain industrial lubricant formulations.

Basic Information

Item	Detail
Product Name	Dioctylthioxostannane
CAS No.	3572-47-2
Molecular Formula	C₁₆H₃₄SSn
Molecular Weight	377.21 g/mol
Synonyms	Dioctyltin Sulfide; Bis(octyl)tin Sulfide; Dioctylstannylene Sulfide; Stannane, dioctylthioxo-; Octyltin Sulfide; Thermolite 890; Stanclere T-2500; (Di-n-octyltin)sulfide; Catalyst T-9 (related series); Dibutyltin Sulfide analog (higher homologue)
EINECS	222-679-0

Quality Control

Our Dioctylthioxostannane is manufactured under a stringent quality management system. Every batch is analyzed to ensure it meets precise specifications for tin content, purity, and performance characteristics. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with each shipment to guarantee consistency and compliance with your formulation requirements.

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). Keep away from strong oxidizing agents and moisture. For long-term storage, consider an inert atmosphere to preserve optimal activity.

Specification

Item	Specification
Appearance	Pale yellow to yellow liquid or low-melting solid
Identification (IR)	Conforms to reference spectrum
Assay (Sn Content)	≥ 31.0 %
Purity (HPLC)	≥ 95.0 %
Specific Gravity (25°C)	1.10 - 1.20
Refractive Index (n20D)	1.510 - 1.530

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