Octamethylcyclotetrasiloxane CAS NO.556-67-2
Name:Octamethylcyclotetrasiloxane
CAS No.:556-67-2
Appearance: colorless transparent oily liquid
Molecular formula: C8H24O4Si4
EINECS No.: 209-136-7
Molecular Weight: 296.6158
Density: (25℃, g/cm3): 0.9558
Molecular structure:
Product performance: Octamethylcyclotetrasiloxane (D4), the appearance is colorless and transparent oily liquid, the ring body D4 is non-polar, insoluble in water, but easily soluble in low molecular weight alcohols, esters, aliphatics and aromatic carbons oxygen compounds.
Main application: Octamethylcyclotetrasiloxane (D4) is catalyzed by acid and alkali to open the ring to form organosilicon high polymer. It is the basic raw material of silicone oil and silicone rubber. It can also be directly used as rubber filler treatment and cosmetic raw material. Polymerization After processing, it is widely used in various fields such as construction, electronics, textiles, automobiles, personal care, food, mechanical processing, etc., and there are also a small number of direct applications.