Potassium hydrogen sulfite
亚硫酸氢钾
Also known as: Potassium bisulfite, Potassium acid sulfite, Potassium hydrogen sulphite, Monopotassium sulfite, Sulfurous acid monopotassium salt, EINECS 231-870-1, UNII-QJK5LO891P, POTASSIUM BISULFITE SOLUTION
Potassium hydrogen sulfite (CAS 7773-03-7) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula HKO3S and a molecular weight of 120.16900 g/mol. It is also known as Potassium bisulfite, Potassium acid sulfite and Potassium hydrogen sulphite. Key property: a melting point of 190ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 7773-03-7
- Jingsj CID
- J-1321570-9
- Molecular Formula
- HKO3S
- Chinese Name
- 亚硫酸氢钾
- Molecular Weight
- 120.16900 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 190ºC |
|---|
Frequently Asked Questions
What is the CAS number of Potassium hydrogen sulfite?
The CAS number of Potassium hydrogen sulfite is 7773-03-7.
What are the molecular formula and molecular weight of Potassium hydrogen sulfite?
Potassium hydrogen sulfite has molecular formula HKO3S and molecular weight 120.16900 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Potassium hydrogen sulfite (CAS 7773-03-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1321570-9 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.