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Octamethyl Cyclotetrasiloxane (D4) CAS NO.556-67-2

Octamethyl Cyclotetrasiloxane (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

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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

Product description

It is a volatile polydimethylcyclosiloxane, mainly composed of octamethylcyclotetrasiloxane; it is polymerized into an organosilicon polymer under acid-base catalysis, which is the basic raw material of silicone oil and silicone rubber. It can be directly used as rubber filler treatment agent and cosmetic raw material.

Product Series

D4≥99%

Performance and Application

It is the basic raw material of silicone oil, emulsion, silicone rubber, silicone resin and other silicone products, and can also be directly used as rubber filler treatment agent and cosmetic raw material.

Application industry

1. Information field: optical fiber preform

2. Textile industry: textile auxiliaries, soft foam silicone oil

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