CAS 1067-25-0 Trimethoxy(Propyl)Silane - Materials / Alfa Chemistry

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Trimethoxy(Propyl)Silane

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Catalog Number

ACM1067250-1

CAS Number

1067-25-0

Product Name

Trimethoxy(Propyl)Silane

Structure

Category

Salt; Silane Coupling Agents; Self Assembly and Contact Printing Materials

Synonyms

Propyltrimethoxysilane

Description

Liquid

IUPAC Name

trimethoxy(propyl)silane

Molecular Weight

164.28

Molecular Formula

C6H16O3Si

Canonical SMILES

CCC[Si](OC)(OC)OC

InChI

InChI=1S/C6H16O3Si/c1-5-6-10(7-2,8-3)9-4/h5-6H2,1-4H3

InChI Key

HQYALQRYBUJWDH-UHFFFAOYSA-N

Flash Point

34 °C

Purity

>98%

Appearance

Colorless to almost colorless clear liquid

Application

Trimethoxy(propyl)silane, a colorless or yellowish low-viscosity liquid, serves multiple industrial purposes, with its role as a pivotal material in sol-gel production being particularly notable. It is primarily characterized by its ability to provide hydrophobic surface treatment for inorganic powders and filler materials. Additionally, this alkylalkoxysilane plays an essential role as one of the components in the Ziegler-Natta catalyst system for polyolefin production. With functional versatility, it reacts with water more readily than some counterparts, allowing users to adjust hydrolysis rates to suit specific applications. Furthermore, it acts as a neutral curing agent in silicone sealant formulations, where it crosslinks α,ω-silanol polydimethylsiloxanes in conditions of atmospheric moisture. This particular silane is often preferred as the primary crosslinker in oxime silicone sealants, offering the potential for tailored properties such as controlled cure rates and enhanced adhesion, either alone or in combination with other oxime silanes.

Storage

Store under inert gas

Complexity

74.8

Covalently-Bonded Unit Count

EC Number

213-926-7

Exact Mass

164.086871g/mol

Formal Charge

Hazard Statements

H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
H226 : Flammable liquid and vapour.

Heavy Atom Count

MDL Number

MFCD00043026

MeSH Entry Terms

propyltrimethoxysilane;PTMS cpd

Monoisotopic Mass

164.086871g/mol

Precautionary Statements

P210 : Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection.
P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.

Properties

Liquid

Rotatable Bond Count

Signal Word

Warning

Specific Gravity

0.94

UNII

T72C7N9XO2

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