Description

Di-n-Butyltin Bis(2-Ethylhexanoate) is a versatile organotin compound widely recognized as a highly effective catalyst and stabilizer in polymer chemistry. Its primary value lies in its ability to accelerate polyurethane and silicone curing reactions while also providing excellent thermal stability to PVC formulations. This product is essential for manufacturers in the plastics, coatings, and sealants industries seeking to optimize production efficiency and enhance the durability of their final products.

Application

• Polyurethane Catalyst: A key catalyst for the production of flexible and rigid polyurethane foams, elastomers, and coatings, offering controlled reaction kinetics.
• PVC Stabilizer: Acts as a highly effective heat stabilizer in polyvinyl chloride (PVC) processing, preventing degradation during extrusion and molding.
• Silicone Curing Agent: Used as a catalyst in condensation-cure silicone rubber systems (RTV-1 and RTV-2) for adhesives, sealants, and encapsulants.
• Esterification & Transesterification Catalyst: Facilitates esterification and transesterification reactions in the synthesis of plasticizers, lubricants, and biodiesel.
• Crosslinking Agent: Employed in the crosslinking of polymers and resins to improve mechanical strength and chemical resistance.
• Adhesive & Sealant Formulations: A critical component in high-performance industrial and construction adhesive and sealant formulations.

Basic Information

Product Name	Di-n-Butyltin Bis(2-Ethylhexanoate)
CAS No.	2781-10-4
Molecular Formula	C24H48O4Sn
Molecular Weight	519.33 g/mol
Synonyms	Dibutyltin Bis(2-ethylhexanoate); Dibutyltin Di(2-ethylhexoate); DBTL; Dibutyltin Laurate (common trade name reference); Stannane, dibutylbis[(1-oxo-2-ethylhexyl)oxy]-; Tin, dibutylbis(2-ethyl-1-oxohexyloxy)-; Catalyst T-9 (trade name); Kosmos 19 (trade name)
EINECS	220-499-5

Quality Control

Our Di-n-Butyltin Bis(2-Ethylhexanoate) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing 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 every shipment to guarantee consistency and 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). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Clear, pale yellow to yellow liquid
Identification (IR)	Conforms
Assay (Sn Content)	18.0 - 19.0 %
Specific Gravity (20°C)	1.05 - 1.15
Refractive Index (n20D)	1.470 - 1.490
Acidity (as 2-Ethylhexanoic Acid)	≤ 1.0 %

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