Calcium bisulfite

亚硫酸氢钙

Also known as: Calcium hydrogen sulfite, Calcium hydrogensulfite, Calcium hydrogensulphite, Calcium bisulphite, Sulfurous acid, calcium salt (2:1), EINECS 237-423-7, UN1923, Bis(sulfinooxy)calcium, Calcium bisulfite solution

Calcium bisulfite (CAS 13780-03-5) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula CaH2O8S2 and a molecular weight of 234.21900 g/mol. It is also known as Calcium hydrogen sulfite, Calcium hydrogensulfite and Calcium hydrogensulphite. Key properties include a melting point of 201.5-203 °C(lit.) and a density of 1.06(15ºC). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
13780-03-5
Jingsj CID
J-42729-4
Molecular Formula
CaH2O8S2
Chinese Name
亚硫酸氢钙
Molecular Weight
234.21900 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Physicochemical Properties

Melting Point201.5-203 °C(lit.)
Density1.06(15ºC)

Frequently Asked Questions

What is the CAS number of Calcium bisulfite?

The CAS number of Calcium bisulfite is 13780-03-5.

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

Calcium bisulfite has molecular formula CaH2O8S2 and molecular weight 234.21900 g/mol.

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

Last updated:

How to cite: Jingsj. "Calcium bisulfite (CAS 13780-03-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42729-4 (accessed 2026-10-23).

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