Molecular structure

Typical physical properties
Chemical name: 3-Chloropropyltriethoxysilane
CAS No.: 5089-70-3
EINECS No.: 225-805-6
Formula: C9H21O3SiCl
Appearance: Colorless transparent liquid
Refractive index(n25D): 1.4150-1.4250
Purity: 98%
Application
As a kind of rubber-processing aid, it can be used to treat and couple the inorganic fillers in halogenated rubber, which includes chlorobutadiene rubber, chlorinated butyl rubber, chloro hydrine rubber, chlorosulfonatedpolyethylene etc, so as to improve their physical-mechanical properties.
Used as an intermediate for other functional organosilanes.
Possible Alternative
Wacker: SILANGF18
DOWCorning: Z6376
Shin-Etsu: KBE-703
Momentive:
Evonik: