Mercapto Silane Crosile® 189 MPTMS

Silane Coupling Agent Crosile® 189 is a colorless clear liquid with light typical odor and easily soluble in ethyl alcohol, acetone, benzene, toluene etc. Insoluble in water.

3-Mercaptopropyltrimethoxysilane(MPTMS)is a bifunctional organosilane possessing a reactive organic mercapto and a hydrolyzable inorganic methoxysilyl group.

Item NO.:
Crosile® 189
Chemical Name:
3-Mercaptopropyltrimethoxysilane
Chemical Formula:
C6H16O3SSi
CAS No.:
4420-74-0
EINECS No:
250-426-8
Properties:
* Compression set * Improved mechanical properties * Improved moisture and corrosion resistance * Improved electrical properties * Increased thermal resistant

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Mercapto Silane Crosile® 189 MPTMS

Bifunctional silane coupling agent, a colorless clear liquid soluble in organic solvents and insoluble in water.

Product Description

Silane Coupling Agent Crosile® 189 is a colorless clear liquid with light typical odor and easily soluble in ethyl alcohol, acetone, benzene, toluene etc. Insoluble in water.

Chemical Identity

Chemical Name: 3- Mercaptopropyltrimethoxysilane
Molecular Formula: C6H16O3SSi
CAS Number: 4420-74-0
Synonyms: γ-Mercaptopropyltrimethoxysilane, (3-Mercaptopropyl)methyldimethoxysilane, 3-Mecaptopropylmethyldimethoxysilane, 3-[Dimethoxy(Methyl)Silyl]Propane-1-Thiol, Mercaptopropyl methyl dimethoxy silane, γ-Mercaptopropyl)methyldimethoxysilane, MPTMS

Molecular Mechanism

Crosile® 189 is a bifunctional organosilane possessing a reactive organic mercapto and a hydrolyzable inorganic methoxysilyl group.

Key Features

Clear Liquid Property

Colorless clear liquid with light typical odor.

Broad Solubility

Easily soluble in ethyl alcohol, acetone, benzene, water, etc. Insoluble in water.

Performance Improvement

Compression Set: Improves the compression set property.

Mechanical Properties: Improved mechanical properties.

Moisture & Corrosion Resistance: Improved moisture and corrosion resistance.

Electrical Properties: Improved electrical properties.

Thermal Resistance: Increased thermal resistance.

Technical Specifications

Properties	Units	Target Values (Spec, Limits)
Crosile® 189 Content	%(wt)	≥97.0%
Alcohol Content	%(wt.)	≤2.0%
Specific Gravity (25°C)	-	1.020 - 1.060
Refractive Index (25°C)	-	1.440-1.445

Application Scenarios

Metal Surface Treatment

Silane coupling agent Crosile® 189 has special effect on the metal surface rust inhibitor. With its thiol functional group, it can strengthen the surface corrosion resistance and oxidation resistance and increase the adhesion with resin, when facing gold, silver and copper surface processing.

Rubber Industry

In the rubber industry, it is used to dispose inorganic filler such as white carbon black, carbon black, glass fiber and mica, which can enhance rubber mechanical property and abrasion resistance.

Textile Finishing

It is also available for shrink resistant finish in spinning.

Packaging And Transportation

Packing: 25 kg /drum, it loads 16 MT/ 20 FCL with pallet
200 kg /drum, it loads 16 MT/20 FCL with pallet
1000 kg in plastic drum, 21.2 MT/20 FCL with pallet.
Storage: Kept at a low temperature, dry and ventilated place, avoid direct sunlight.
Shelf life: One year in a ventilated, cool and dry area.

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