Potassium hexafluorosilicate
氟硅酸钾
Also known as: Dipotassium hexafluorosilicate, Potassium fluorosilicate, Potassium silicofluoride, Potassium fluosilicate, Potassium silicafluoride, dipotassium hexafluorosilicate(2-), hexafluoro-silicate(2-) dipotassium, Silicate(2-), hexafluoro-, potassium (1:2), Kaliumhexafluorsilikat
Potassium hexafluorosilicate (CAS 16871-90-2) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula F6K2Si and a molecular weight of 220.27300 g/mol. It is also known as Dipotassium hexafluorosilicate, Potassium fluorosilicate and Potassium silicofluoride. Key properties include a melting point of °Cd ec.) and a density of 2.665 g/mL at 25 °C(lit.). GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 16871-90-2
- Jingsj CID
- J-2864-0
- Molecular Formula
- F6K2Si
- Chinese Name
- 氟硅酸钾
- Molecular Weight
- 220.27300 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | °Cd ec.) |
|---|---|
| Density | 2.665 g/mL at 25 °C(lit.) |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Potassium hexafluorosilicate?
The CAS number of Potassium hexafluorosilicate is 16871-90-2.
What are the molecular formula and molecular weight of Potassium hexafluorosilicate?
Potassium hexafluorosilicate has molecular formula F6K2Si and molecular weight 220.27300 g/mol.
Is Potassium hexafluorosilicate hazardous?
Potassium hexafluorosilicate has GHS signal word Danger.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Potassium hexafluorosilicate (CAS 16871-90-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-2864-0 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.