Dichlorosilane
Also known as: Dichlorosilane (SiH2Cl2), DCS, Silane, dichloro-, Dichlorodihydrosilane, Dihydrogendichlorosilane, Silicon chloride hydride (SiH2Cl2), dichloromonosilane
Dichlorosilane (CAS 4109-96-0) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Cl2H2Si and a molecular weight of 101.00700 g/mol. Key properties include a melting point of −122 °C(lit.), a boiling point of 8.3 °C(lit.), a density of 1,22 g/cm3 and a flash point of -37°C. It is classified under GHS with signal word Danger and hazard statements H220, H280 and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4109-96-0
- Jingsj CID
- J-1347674-2
- Molecular Formula
- Cl2H2Si
- Molecular Weight
- 101.00700 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
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Request a quotePhysicochemical Properties
| Melting Point | −122 °C(lit.) |
|---|---|
| Boiling Point | 8.3 °C(lit.) |
| Density | 1,22 g/cm3 |
| Flash Point | -37°C |
| Exact Mass | 99.93030 |
| LogP | 0.46280 |
| Additional Property | 3.5 (vs air) |
| Vapor Pressure | 1254 mm Hg ( 20 °C) |
| Additional Property | decomposes |
GHS Safety & Compliance
- H220
- H280
- H314 — Causes severe skin burns and eye damage
- H331 — Toxic if inhaled
Frequently Asked Questions
What is the CAS number of Dichlorosilane?
The CAS number of Dichlorosilane is 4109-96-0.
What are the molecular formula and molecular weight of Dichlorosilane?
Dichlorosilane has molecular formula Cl2H2Si and molecular weight 101.00700 g/mol.
Is Dichlorosilane hazardous?
Dichlorosilane has GHS signal word Danger and hazard statements H220; H280; H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of Dichlorosilane?
For Dichlorosilane, Upstream Products: Dichlorodiphenylsilane, Dichloromethylsilane, Methyltrichlorosilane; Downstream Products: Allyldichlorosilane, Diethylsilane, Dichloro(hexyl)silane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Dichlorosilane (CAS 4109-96-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1347674-2 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.