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D4 CAS NO.556-67-2

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D4 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
Melting point: 17.6°C, boiling point 175.8°C
Refractive index (25℃): 1.3960~1.3970
Boiling point: 175°C at 760 mmHg
Flash point: 63.2°C
Water Soluble: INSOLUBLE
Vapor Pressure: 1.57mmHg at 25°C
  • Product Details

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:

image

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.


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