Organosilicons

Methyltrichlorosilane for organosilicon manufacturing

Methyltrichlorosilane (MTCS) is a reactive organosilicon intermediate used to produce silicone resins, silane compounds and other silicon-based materials. Its three reactive chlorine atoms participate in hydrolysis and condensation reactions, forming the Si–O–Si structures used in organosilicon chemistry.

We supply Methyltrichlorosilane for industrial chemical production, with specifications covering purity and key impurities. At Shandong Xima Supply Chain Management Co., Ltd., we combine chemical sourcing with warehousing, logistics and export coordination to support industrial raw material purchasing.

 
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Methyltrichlorosilane specifications

Our Methyltrichlorosilane is a colorless, transparent liquid at 25°C. The following specifications provide key reference points for product selection and quality assessment.

Specification Value
Product name Methyltrichlorosilane
Abbreviation MTCS / M1
CAS No. 75-79-6
Molecular formula CH₃SiCl₃
Molecular weight 149.47 g/mol
Appearance Colorless, transparent liquid (25°C)
Purity ≥99.0%
Trimethylchlorosilane content ≤0.1%
Silicon tetrachloride (SiCl₄) content ≤0.1%

The purity and impurity specifications are important when evaluating Methyltrichlorosilane as a feedstock for downstream organosilicon synthesis.

Industrial applications

Methyltrichlorosilane is used as a starting material in several organosilicon production processes.

Silicone resins: Used to manufacture methyl-containing silicone resins.

Silane compounds: Used in the synthesis of methyltrimethoxysilane and methyltriethoxysilane.

Crosslinking agents: Used to produce organosilicon crosslinking materials.

Specialty coatings: Serves as an intermediate in the manufacture of silicone-based coatings.

Construction waterproofing materials: Used in the production of organosilicon waterproofing agents.

Other silicon-based materials: Used in the production of fumed silica and sodium methylsiliconate.

These applications make Methyltrichlorosilane a raw material for manufacturers working with silicone-based chemicals and related industrial materials.

Chemical properties and handling

Methyltrichlorosilane contains three reactive Si–Cl bonds. During hydrolysis, these bonds react with water, followed by condensation reactions that form Si–O–Si structures.

Because MTCS reacts readily with moisture, moisture protection is important during storage, handling and transportation.

Keep containers tightly sealed and protected from moisture.

Store in a cool, dry and well-ventilated area.

Keep away from ignition sources and incompatible materials.

Follow the applicable Safety Data Sheet (SDS) for handling and storage procedures.

Transportation information

Methyltrichlorosilane has the following dangerous goods transportation classification:

Item Classification
UN Number UN 1250
Primary Hazard Class Class 3 – Flammable Liquid
Subsidiary Risk Class 8 – Corrosive Substance
Packing Group II

Packaging and shipping arrangements must comply with applicable dangerous goods transportation requirements.

Chemical supply and export support

At Shandong Xima Supply Chain Management Co., Ltd., our business covers chemical sourcing, purchasing, sales, warehousing, logistics and export operations.

Our product portfolio includes basic chemical raw materials, fine chemical intermediates, specialty chemicals, chemical auxiliaries and solvents. These products serve industrial sectors such as coatings, rubber and plastics, pharmaceuticals, pesticides and water treatment.

We provide pre-sales product consultation, order coordination and after-sales technical communication. For Methyltrichlorosilane purchases, we coordinate product specification communication, order arrangements and export logistics.

Request a quote for Methyltrichlorosilane

Looking for Methyltrichlorosilane for your organosilicon production?

Send us your required purity, estimated order quantity and destination country or port. Our team will review your requirements and provide the relevant product and supply information.

As one of the most professional organosilicons manufacturers in China, we offer a wide range of products with superior quality. Please feel free to buy bulk organosilicons in stock here and get free sample from our factory. We also accept customized orders.

CAS 75 79 6, Methyltrichlorosilane, organosilicons