Trichlorosilane
Trichlorosilane (CAS: 10025-78-2), with the linear formula SiHCl₃ and a molecular weight of 135.45 g/mol, is a volatile, colourless liquid. It is a key intermediate in the production of silicones, silanes, and high-purity silicon. Trichlorosilane is also employed in the synthesis of various organosilicon compounds and as a reagent in materials science and chemical research. Its reactive nature necessitates careful handling and storage.
Silicon Production
Trichlorosilane is a primary precursor for producing high-purity silicon used in the semiconductor and photovoltaic industries. It undergoes purification processes before being decomposed to yield elemental silicon.
Silicone and Silane Synthesis
This compound serves as a fundamental building block for synthesising a wide range of silicone polymers and organosilanes. These materials find applications in sealants, adhesives, lubricants, and coatings.
Chemical Reagent
In organic and inorganic synthesis, trichlorosilane acts as a reducing agent and a silylating agent. It is particularly useful for introducing silicon-hydrogen bonds and as a precursor in materials science research.
Nanomaterial Precursor
It is utilised in the preparation of various nanostructured silicon-based materials, including silicon nanoparticles and nanowires, due to its reactive silicon-containing nature.
| Molecular weight | 135.45 |
|---|---|
| Linear formula | SiHCl3 |
| Assay | 99% |
| Boiling point | 32-34 °C(lit.) |
| Density | 1.342 g/mL at 25 °C(lit.) |
| Vapour pressure | 9.75 psi (20 °C) |
| Vapour density | 1 (vs air) |
| Storage temperature | 2-8°C |
Hazard statements
- H224Extremely flammable liquid and vapour
- H250Catches fire spontaneously if exposed to air
- H302Harmful if swallowed
- H314Causes severe skin burns and eye damage
- H332Harmful if inhaled
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P222Do not allow contact with air
- P231Handle under inert gas
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P422
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | -51 °C / -59.8 °F |
| Transport (UN / ADR) | UN 1295 4.3/PG 1 |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | F+,C |
| Risk statements (R) | 12-14-17-20/22-29-35 |
| Safety statements (S) | 7/9-16-26-36/37/39-43-45 |
| Supplemental hazards | Contact with water liberates toxic gas., Reacts violently with water. |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Expl Lim | 70 % |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Trichlorosilane used for?
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Trichlorosilane (CAS: 10025-78-2) is primarily used in the production of high-purity silicon for the semiconductor and photovoltaic industries, as a precursor for silicone and silane synthesis, and as a reagent in chemical synthesis and materials science.
What are the CAS number and formula for Trichlorosilane?
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The CAS number for Trichlorosilane is 10025-78-2, and its linear formula is SiHCl₃.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Trichlorosilane with an assay of 99%. We do not represent this product as USP, BP, or EP grade.
How should Trichlorosilane be handled safely?
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Trichlorosilane is extremely flammable and reacts violently with water, liberating toxic gas. It is corrosive and harmful if inhaled or swallowed. Handle only in a well-ventilated area, away from ignition sources and water. Use appropriate personal protective equipment, including a full-face respirator, chemical-resistant gloves, and eye protection. Refer to the Safety Data Sheet for detailed handling procedures.
How is Trichlorosilane packed, shipped, and exported?
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Trichlorosilane is packed in approved containers suitable for highly flammable and reactive liquids, adhering to international shipping regulations. As a global supplier, TSS expertly handles the export of this chemical.
How can I request a sample or quote for Trichlorosilane?
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To request a sample or a quote for Trichlorosilane, please contact our sales department through the website or by phone, providing your specific requirements.
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