Chemicals

Methyltriacetoxysilane

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Chemical Name:Methyltriacetoxysilane

CAS.NO:4253-34-3

Synonyms:Triacetoxy(methyl)silane; methylsilanetriyl triacetate;

methyltriacetoxy-silan; Triacetoxy-methyl-silan;

Molecular Formula:C7H12O6Si

Molecular Weight:220.25200

Physical and Chemical Properties:

Density:1.20;

Melting point:40-45oC;

Boiling point:94-95oC;

Flash point:85oC;

Index of Refraction:1.52;

Specification:

Appearance:Colorless or yellowish transparent liquid

Purity(GC):≥95.0%

Packing:200 kg/drum, can also be packaged according to customer requirements

Storage:Store in a cool, ventilated place

Application:Acetoxy silanes are more reactive than alkoxysilanes. Acetoxy silanes are frequently used as one-component mixtures to make RTV-1 silicone sealants. These mixtures have an excess of multi-functional acetoxy silane added to silanol-terminated PDMS, which results in a PDMS chain with acetoxy groups at the ends. When this compound is exposed to moisture some acetoxy groups are hydrolyzed and self-condense or react with other acetoxy and rapid crosslinking takes place. Acetic acid formation is one of the driving forces of this reaction.

Methyltriacetoxysilane

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