Potassium sulfite

无水亚硫酸钾

Also known as: Dipotassium sulfite, Potassium sulfite (K2SO3), E225

Potassium sulfite (CAS 10117-38-1) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula K2O3S and a molecular weight of 158.260 g/mol. It is also known as Dipotassium sulfite, Potassium sulfite (K2SO3) and E225. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
10117-38-1
Jingsj CID
J-9222-5
Molecular Formula
K2O3S
Chinese Name
无水亚硫酸钾
Molecular Weight
158.260 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of Potassium sulfite?

The CAS number of Potassium sulfite is 10117-38-1.

What are the molecular formula and molecular weight of Potassium sulfite?

Potassium sulfite has molecular formula K2O3S and molecular weight 158.260 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 (CAS 10117-38-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9222-5 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.