Description

Butyltin Tris(2-Ethylhexanoate) is a versatile organotin compound widely used as a catalyst and stabilizer in industrial polymer chemistry. Its primary value lies in its exceptional efficiency in promoting polycondensation reactions, such as in the production of polyesters and polyurethanes, while also providing thermal stability to the final products. This chemical is essential for manufacturers in the plastics, coatings, and adhesive industries seeking to enhance polymerization rates and improve material performance. Butyltin Tris(2-Ethylhexanoate) CAS NO 23850-94-4 represents a critical component for high-performance material synthesis.

Application

• Polyesterification Catalyst: A key catalyst in the production of saturated and unsaturated polyesters for resins, fibers, and films.
• Polyurethane Foam Catalyst: Used to catalyze the reaction between polyols and isocyanates in flexible and rigid foam manufacturing.
• Silicone Cross-linking Agent: Facilitates the curing and cross-linking of room-temperature vulcanizing (RTV) silicone rubbers and sealants.
• PVC Heat Stabilizer: Acts as a co-stabilizer in polyvinyl chloride (PVC) formulations to prevent thermal degradation during processing.
• Esterification & Transesterification Reactions: Employed as a catalyst in organic synthesis for producing plasticizers, lubricants, and biodiesel.
• Adhesive & Coating Formulations: Enhances the curing speed and final properties of industrial adhesives and protective coatings.

Basic Information

Item	Details
Product Name	Butyltin Tris(2-Ethylhexanoate)
CAS No.	23850-94-4
Molecular Formula	C30H60O6Sn
Molecular Weight	635.50 g/mol
Synonyms	Butyltin Tri(2-ethylhexanoate); Stannane, tributyl-, tris(2-ethylhexanoate)oxo-; Tributyltin 2-ethylhexanoate; Tributyltin tris(2-ethylhexanoate); TBTO-EH; Tin, tributyl-, tris(2-ethylhexanoate); Butylstannane tris(2-ethylhexanoate); Catalyst T-9 (trade name related)
EINECS	245-949-4

Quality Control

Our Butyltin Tris(2-Ethylhexanoate) is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including assay by titration and impurity profiling, to meet the specifications required for catalytic applications. Certificates of Analysis (COA) documenting purity, tin content, and other critical parameters are provided with each 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 initial use to prevent degradation by atmospheric moisture. Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Clear, pale yellow to yellow liquid
Identification (IR)	Conforms to structure
Assay (Tin content)	≥ 18.5 %
Purity (GC)	≥ 95.0 %
Specific Gravity (20°C)	1.10 - 1.20
Refractive Index (20°C)	1.480 - 1.500
Water Content (KF)	≤ 0.5 %

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