Divinyltetramethyldisiloxane CAS 2627-95-4

Product Name: 1,3-Divinyltetramethyldisiloxane
English Alias: Divinyltetramethyldisiloxane; Bis(vinyl-dimethylsilyl)oxide
CAS Number: 2627-95-4
Molecular Formula: C₈H₁₈OSi₂
Molecular Weight: 186.40 g/mol
Appearance: Colorless clear liquid
Package: 1 kg/bottle, 5 kg/bottle (glass bottle or HDPE plastic bottle)

What is 1,3-Divinyltetramethyldisiloxane？

1,3-Divinyltetramethyldisiloxane is a reactive siloxane compound appearing as a colorless clear liquid with a characteristic mild odor. It is insoluble in water but soluble in most organic solvents. The compound contains two vinyl functional groups that provide excellent reactivity, making it a valuable crosslinking agent and intermediate in silicone chemistry. It should be stored under inert atmosphere to prevent polymerization.

COA (Certificate of Analysis):

	ANALYSIS ITEM	SPECIFICATION	RESULT
1	Appearance	Colorless Transparent Liquid	pass
2	Main Assay (%)	≥99.0	99.65
3	Vinyl content (%)	≥28%	28%

Application:

Silicone Sealants and Adhesives:

Used as a key ingredient to enhance the performance, adhesion, and durability of silicone sealants and adhesives in industries like construction, automotive, and electronics.

Organometallic Chemistry:

Functions as a ligand in organometallic complexes, such as the widely used Karstedt's catalyst, which is used in silicone curing

Polymer Synthesis:

Utilized in the research and development of advanced polymers, contributing to materials for applications in textiles and packaging.

Safety Profile:

1,3-Divinyltetramethyldisiloxane is flammable and may form explosive mixtures with air. Causes skin and eye irritation. May cause respiratory irritation. Use appropriate personal protective equipment including chemical-resistant gloves, safety glasses, and adequate ventilation when handling. Keep away from heat and ignition sources. The substance is toxic to aquatic life. For comprehensive safety information, always consult the full Safety Data Sheet (SDS).

Storage Requirements:

Store in a cool, dry, well-ventilated area away from direct sunlight. Keep containers tightly closed and sealed under inert atmosphere (nitrogen). Maintain storage temperature between 2-8°C. Keep away from heat sources, sparks, and open flames. Inhibited with stabilizer to prevent polymerization.

Transport & Packaging:

1,3-Divinyltetramethyldisiloxane is packaged in glass bottles or HDPE plastic bottles (1 kg or 5 kg net weight per bottle), placed in sturdy outer containers. Transport as flammable liquid according to applicable regulations. Ensure containers are properly sealed and protected from physical damage during transportation. Store away from incompatible materials and oxidizing agents.