SiSiB® PC5132

Methyltriethoxysilane

SiSiB® PC5132 is an alkylalkoxysilane. It is a clear, colorless liquid with an odor characteristic of alcohols. SiSiB® PC5132 hydrolyzes slowly in the presence of moisture to form reactive silanols. These react further to produce oligosiloxanes and then polysiloxanes.

This alkyl alkoxy silane is the equivalent of Momentive's A-162, Dow's Z-6370, Wacker's M1-TRIETHOXY, Evonik's Dynasylan MTES, ShinEtsu's KBE-13.

Technical Data

CAS No. 2031 67 6

EINECS No. 217-983-9

Formula C7H18O3Si

Molecular Weight 178.3

Boiling Point 142°C [760mmHg]

Flash Point 30°C

Color and Appearance Colorless transparent liquid

Density 25/25°C 0.895

Refractive Index 1.3832[25°C]

Min. Purity 99.50%

Application

SiSiB® PC5132 may be used as an important component for sol-gel coating, silicone resins and silicone rubber.

SiSiB® PC5132 is practically insoluble in neutral water and reacts only slowly to form silanols and higher condensation products. Addition of a hydrolytic catalyst (inorganic/organic acids, ammonia or amines) accelerates the hydrolysis of SiSiB® PC5132 Methyltriethoxysilane substantially.

SiSiB Silicones® PC5132 organo silanes may be used as water repellent to improve fillers dispersibility and reduces their sedimentation tendency.

SiSiB® PC5132 methyltriethoxysilane, MTES silane, is highly miscible with standard organic solvents, such as alcohols, hydrocarbons and acetone.

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