Cyclotetrasiloxane LC-D4

Name: Cyclotetrasiloxane LC-D4
Brand: LANCHEMIE INDUSTRY CO., LIMITED.
Availability: InStock

Octamethylcyclotetrasiloxane (D4) is a colorless, viscous cyclic siloxane.It is a key cyclic intermediate in the organic silicon industry, with excellent ring opening polymerization activity, compatibility, and physicochemical properties, applied in various fields such as material synthesis, daily chemical, and in electronics, and construction industry.

Chemical formula: C8H24O4Si4

CAS NO.: 556-67-2

Specification of Cyclotetrasiloxane LC-D4

Technical data

Item	Value
Appearance	Colorless transparent liquid
Chromaticity/Hazen units (platinum cobalt color number)	10
D4, %	≥99.9%
Refractive index ND20	1.3960~1.3970
Viscosity (mm2/s), 25℃	2-2.5
Flash point, Closed cup	51℃
Density, 25℃	0.95～0.97

Features & Benefits of Cyclotetrasiloxane LC-D4

Has excellent ring opening polymerization activity
Each silicon atom is connected to two methyl groups, which has strong chemical stability
Good compatibility
Low viscosity and easy to operate
Strong functional scalability
High adaptability to application scenarios