Methyltrichlorosilane

Methyltrichlorosilane, also known as trichloromethylsilane, has the molecular formula CH₃SiCl₃ and CAS number 75-79-6. It is a colourless, transparent, fuming liquid with a sharp, pungent odour. It is highly reactive, flammable, and moisture-sensitive – reacts violently with water to release hydrogen chloride (HCl) gas.

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Product Introduction

Zouping Jinxing Chemical Co., Ltd. is one of the leading manufacturers and suppliers of Methyltrichlorosilane in China. If you're going to wholesale bulk Methyltrichlorosilane made in China, welcome to get free sample from our factory. All customized products are with high quality and low price.

Specifications

· Appearance:Methyltrichlorosilane is colourless transparent liquid
· Density (20°C): ~1.275 – 1.28 g/cm³
· Refractive Index (η²⁰D): ~1.411
· Boiling Point: 66 – 67°C
· Melting Point: -90°C
· Flash Point: -10°C (closed cup)

Main Applications

Silicone Resins – Key monomer for producing methyl silicone resins.

Crosslinking Agents – Manufacture of methyltriethoxysilane and methyltrimethoxysilane.

Waterproofing Agents – Construction waterproofing agents and surface hydrophobization of fabrics and mesoporous materials.

Fumed Silica – Raw material for producing fumed silica (pyrogenic silica).

Semiconductors – Starting material for producing high-purity silicon for semiconductors and optical fibres.

Oilfield Chemicals – Anti-collapse agent for drilling (methyl sodium silicate).

Speciality Coatings – Raw material for speciality paints and coatings.

Organic Synthesis – Reagent for siliconization, position-selective reactions, and silicon-added reactions.

Packaging & Storage

Packaging Options for Methyltrichlorosilane:

· 200 kg or 250 kg iron drums (sealed)
· 230 kg plastic drums
· ISO tank containers available upon request

Storage:
Store in a cool, dry, well-ventilated area below 15°C, preferably under inert gas. Keep containers tightly sealed. Store away from oxidising agents, acids, alkalis, alcohols, and water. Keep away from heat, sparks, and open flames.

FAQ

Q: What is the UN number and shipping classification?

A: UN 1250, Hazard Class 3 (Flammable Liquid) with Subsidiary Hazard Class 8 (Corrosive), Packing Group II.

Q: What precautions are needed for storage and handling?

A: Store in a cool, dry place below 15°C under inert gas. Keep away from water, moisture, oxidisers, acids, and alkalis. The product reacts violently with water releasing toxic HCl gas – always handle under dry conditions with proper PPE and ventilation.

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