Silane | Silanes | Alkyl & Alkoxy Silanes | Silane Coupling Agents

SiSiB® PC5012

Synonym: Triethoxy(3-chloropropyl)Silane;

Countertype of Degussa Si 230, DowCorning Z-6376, ShinEtsu KBM-704

Chemical Structure


SiSiB® organosilanes basic structure is RnSi(OR)4-n, wherein "R" is an alkyl, aryl, or other organofunctional group and "OR" is a methoxy, ethoxy, or acetoxy group.

Typical Physical Properties

Chemical Name: gamma-Chloropropyltriethoxysilane
CAS No.: 5089-70-3
EINECS No.: 225-805-6
Empirical Formula: C9H21O3ClSi
Molecular Weight: 240.8
Boiling Point: 220°C [760mmHg]
Flash Point: 78°C
Color and Appearance: Colorless transparent liquid
Density [25°C]: 1.008
Refractive Index [25°C]: 1.420 [25°C]
Purity: Min 99.0% by GC


SiSiB® PC5012 reacts with silanol groups of white fillers during mixing and with halogenated polymers using suitable curing systems during vulcanization under formation of covalent chemical bonds. This imparts greater tensile strength, higher moduli,reduced compression set and increased abrasion resistance. SiSiB® PC5012 is used in combination with halogenated polymers in a variety of rubber products where silanol group-containing white fillers are used and where optimum technical properties are required.

SiSiB® PC5012 can be used as an intermediate for other functional organosilanes, like SiSiB® PC1100, SiSiB® PC3200, SiSiB® PC4200 etc.


Net weight 200Kg steel drum or 1000Kg IBC tote, for more details, please visit Packing Centre.

Technical Library

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