Potassium sulfite dihydrate
二水亚硫酸钾
Also known as: POTASSIUM SULFITE, DIHYDRATE), Potassium sulfite dihydrate (K2SO3·2H2O)
Potassium sulfite dihydrate (CAS 7790-56-9) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula K2SO3•2H2O and a molecular weight of 194.292 g/mol. It is also known as POTASSIUM SULFITE, DIHYDRATE) and Potassium sulfite dihydrate (K2SO3·2H2O). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 7790-56-9
- Jingsj CID
- J-51841-9
- Molecular Formula
- K2SO32H2O
- Chinese Name
- 二水亚硫酸钾
- Molecular Weight
- 194.292 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
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Request a quoteFrequently Asked Questions
What is the CAS number of Potassium sulfite dihydrate?
The CAS number of Potassium sulfite dihydrate is 7790-56-9.
What are the molecular formula and molecular weight of Potassium sulfite dihydrate?
Potassium sulfite dihydrate has molecular formula K2SO3•2H2O and molecular weight 194.292 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Potassium sulfite dihydrate (CAS 7790-56-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-51841-9 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.