Silane | Silanes | Alkyl & Alkoxy Silanes | Surface Modifier | Hydrophobing Agents | Water Repellent

SiSiB® PC5941

Synonym: Butyl trimethoxysilane

Countertype of DowCorning 1-6579

Chemical Structure


SiSiB® PC5941 is an alkylalkoxysilane.

It has an n-butyl organic group and a trimethoxysilyl inorganic group. It provides a hydrophobic surface treatment.

Typical Physical Properties

Chemical Name: Butyltrimethoxysilane
CAS No.: 1067-57-8
EINECS No.: 213-936-1
Empirical Formula: C7H18O3Si
Molecular Weight: 178.3
Boiling Point: 164°C [760mmHg]
Flash Point: 44°C
Color and Appearance: Clear to straw liquid
Density [25°C]: 0.931
Refractive Index [25°C]: 1.3979[25°C]
Purity: 97% by GC


SiSiB® PC5941 may provide a hydrophobic surface treatment for inorganic powders orfiller materials

SiSiB® PC5941 reacts faster with water than SiSiB® PC5942. Customer may regulate the rate of hydrolysis according to actual application.


Net weight 180Kg steel drum , for more details, please visit Packing Centre.

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