Calcium sulfite

亚硫酸钙

Also known as: calcium sulphite, Calciumsulfit, sulfurous acid, calcium salt, sulfurous acid, calcium salt (1:1)

Calcium sulfite (CAS 10257-55-3) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula CaSO3 and a molecular weight of 120.14 g/mol. It is also known as calcium sulphite, Calciumsulfit and sulfurous acid, calcium salt. Key property: a melting point of 600°C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
10257-55-3
Jingsj CID
J-901662-4
Molecular Formula
CaSO3
Chinese Name
亚硫酸钙
Molecular Weight
120.14 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Physicochemical Properties

Melting Point600°C

Frequently Asked Questions

What is the CAS number of Calcium sulfite?

The CAS number of Calcium sulfite is 10257-55-3.

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

Calcium sulfite has molecular formula CaSO3 and molecular weight 120.14 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Calcium sulfite (CAS 10257-55-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-901662-4 (accessed 2026-10-23).

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