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Octamethyl Cyclotetrasiloxane CAS NO.556-67-2

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Octamethyl Cyclotetrasiloxane 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

image

Description:

Octamethylcyclotetrasiloxane (D4), colorless, transparent or milky white liquid, flammable, no peculiar smell, is a product obtained from dimethyldichlorosilane through the hydrolysis and synthesis process through separation and rectification. the obtained compound. It is an important intermediate in the silicone industry. The main uses include the preparation of methyl silicone oil and other organosilicon polymers, the insulation and moisture-proof of radio parts, and the surface deactivator of gas chromatography glass capillary columns.

 

 

The main purpose

Octamethylcyclotetrasiloxane (D4) 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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