hexachlorodisiloxane
Also known as: trichloro(trichlorosilyloxy)silane, 1,1,1,3,3,3-hexachlorodisiloxane, oxybis(trichlorosilane), bis(trichlorosilyl) ether, perchlorodisiloxane, hexachloro-disiloxan, hexachloropropanedisiloxane, disiloxane, hexachloro-, 1,3-dichloro-1,1,3,3-tetrachloropropanedisiloxane
hexachlorodisiloxane (CAS 14986-21-1) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Cl6OSi2 and a molecular weight of 284.888 g/mol. Key properties include a melting point of <0ºC, a boiling point of 136.8±9.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 18 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 14986-21-1
- Jingsj CID
- J-16067-8
- Molecular Formula
- Cl6OSi2
- Molecular Weight
- 284.888 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | <0ºC |
|---|---|
| Boiling Point | 136.8±9.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 18 °C |
| Exact Mass | 281.761871 |
| PSA | 9.23000 |
| LogP | 9.00 |
| Vapor Pressure | 9.0±0.2 mmHg at 25°C |
| Refractive Index | 1.488 |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of hexachlorodisiloxane?
The CAS number of hexachlorodisiloxane is 14986-21-1.
What are the molecular formula and molecular weight of hexachlorodisiloxane?
hexachlorodisiloxane has molecular formula Cl6OSi2 and molecular weight 284.888 g/mol.
What are the upstream and downstream products of hexachlorodisiloxane?
For hexachlorodisiloxane, Upstream Products: Tetrachlorosilane, Water, Sulfur trioxide; Downstream Products: Tetrabutyl orthosilicate, Tetrachlorosilane, silica gel.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "hexachlorodisiloxane (CAS 14986-21-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16067-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.