Trichlorosilane
Also known as: Silicochloroform, Silane, trichloro, Trichlorosilane, 98%, Trichloromonosilane, Trichlorosilicon hydride, Trichlorohydrosilane, Trichlorsilan, Triclorosilano, Silanea-19, UNII-QZY2645L6V, MFCD00011518
Trichlorosilane (CAS 10025-78-2) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Cl3HSi and a molecular weight of 135.452 g/mol. Key properties include a melting point of -127 °C, a boiling point of 31.8±9.0 °C at 760 mmHg, a density of 1.342 g/mL at 25 °C(lit.) and a flash point of -13.9 °C. It is classified under GHS with signal word Danger and hazard statements H224, H250 and H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 10025-78-2
- Jingsj CID
- J-41051-1
- Molecular Formula
- Cl3HSi
- Molecular Weight
- 135.452 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -127 °C |
|---|---|
| Boiling Point | 31.8±9.0 °C at 760 mmHg |
| Density | 1.342 g/mL at 25 °C(lit.) |
| Flash Point | -13.9 °C |
| Exact Mass | 133.891312 |
| LogP | 4.77 |
| Additional Property | 1 (vs air) |
| Vapor Pressure | 595.7±0.1 mmHg at 25°C |
| Refractive Index | 1.4-1.402 |
| Additional Property | decomposes |
GHS Safety & Compliance
- H224
- H250
- H302 — Harmful if swallowed
- H332 — Harmful if inhaled
- H314 — Causes severe skin burns and eye damage
Frequently Asked Questions
What is the CAS number of Trichlorosilane?
The CAS number of Trichlorosilane is 10025-78-2.
What are the molecular formula and molecular weight of Trichlorosilane?
Trichlorosilane has molecular formula Cl3HSi and molecular weight 135.452 g/mol.
Is Trichlorosilane hazardous?
Trichlorosilane has GHS signal word Danger and hazard statements H224; H250; H302 — Harmful if swallowed.
What are the upstream and downstream products of Trichlorosilane?
For Trichlorosilane, Upstream Products: Tetrachlorosilane, Trichloro(ethyl)silane, Trichloropropylsilane; Downstream Products: Triallylsilane, hexachlorodisiloxane, Tetrachlorosilane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Trichlorosilane (CAS 10025-78-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-41051-1 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.