Description

Dibutyltin Maleate is an organotin compound widely utilized as a highly effective catalyst and stabilizer in polymer chemistry. Its primary commercial value lies in accelerating the curing of silicone rubbers and polyurethane systems, significantly improving production efficiency and final product performance. This chemical is essential for manufacturers in the plastics, coatings, and sealants industries seeking to optimize their formulations for durability and processing speed.

Application

• Silicone Rubber Catalyst: A key catalyst for the room-temperature vulcanization (RTV) and heat-cured vulcanization of silicone elastomers, used in sealants, adhesives, and molded rubber parts.
• Polyurethane Catalyst: Promotes the reaction between polyols and isocyanates in the production of flexible and rigid PU foams, coatings, and elastomers.
• PVC Stabilizer: Acts as a heat stabilizer in polyvinyl chloride (PVC) processing to prevent degradation and discoloration at high temperatures.
• Esterification & Transesterification Catalyst: Facilitates organic synthesis reactions for producing plasticizers, lubricants, and other ester-based compounds.
• Cross-linking Agent: Used in specialty coatings and resin systems to enhance network formation and improve chemical resistance.

Basic Information

Item	Details
Product Name	Dibutyltin Maleate
CAS No.	78-04-6
Molecular Formula	C12H20O4Sn
Molecular Weight	346.99 g/mol
Synonyms	Dibutyltin maleate; Dibutylstannylene maleate; Stannane, dibutyl-, maleate (1:1); Dibutyltin maleate ester; DBTM; Tin, dibutyl-, maleate; Butynorate; Dibutylstannane maleate; Dibutylstannyl maleate
EINECS	201-077-9

Quality Control

Our Dibutyltin Maleate is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay, identification, and impurity profiling, to meet exacting industry specifications. A Certificate of Analysis (COA) detailing all quality parameters 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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
Tin (Sn) Content	34.0 - 35.0 %
Melting Point	120 - 125 °C
Loss on Drying	≤ 1.0 %

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