SiSiB® PC5220

Dimethyldichlorosilane

SiSiB® PC5130, SiSiB® PC5220 and SiSiB® PC5310 are formed by reaction of metallic silicon or ferrosilicon with hydrogen chloride or chlorine. SiSiB® PC5220 is a colorless clear liquid.

Technical Data

CAS No.	75 78 5
EINECS No.	200-901-0
Formula	C2H6Cl2Si
Molecular Weight
Boiling Point	70°C [760mmHg]
Flash Point	-7°C
Color and Appearance	Colorless clear liquid
Density 25/25°C
Refractive Index

Application

Methyl chlorosilanes have one to three methyl groups. In the case of SiSiB® PC5220 dimethyldichlorosilane, dimethyl dichloro silane, two chlorine atoms are available, so that a reaction with excess water produces a linear chain of ether-like linkages between silicon atoms.

As in polyethers, these flexible linkages produce a rubbery polymer, polydimethylsiloxane (PDMS). Trimethylchlorosilane (SiSiB® PC5310) can be used to induce branching and cross-linking in PDMS molecules, while chlorotrimethylsilane serves to end backbone chains, limiting molecular weight.

Silicone Chinais ubiquitous in our lives and has been continuously improving our lives. Since our establishment as a silicone products manufacturer in 1989, silicone has been our core business, especially custom food and medical grade silicone.

If you want to know more applications of Silane Coupling Agent, please visit our website.

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