Monopotassium phosphite

亚磷酸二氢钾

Also known as: Potassium dihydrogen phosphite, Phosphorous acid, dihydrogen potassium salt, Monopotassium phosphite (KH2PO3)

Monopotassium phosphite (CAS 13977-65-6) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula H2KO3P and a molecular weight of 120.086 g/mol. It is also known as Potassium dihydrogen phosphite, Phosphorous acid, dihydrogen potassium salt and Monopotassium phosphite (KH2PO3). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
13977-65-6
Jingsj CID
J-1023803-7
Molecular Formula
H2KO3P
Chinese Name
亚磷酸二氢钾
Molecular Weight
120.086 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of Monopotassium phosphite?

The CAS number of Monopotassium phosphite is 13977-65-6.

What are the molecular formula and molecular weight of Monopotassium phosphite?

Monopotassium phosphite has molecular formula H2KO3P and molecular weight 120.086 g/mol.

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

Last updated:

How to cite: Jingsj. "Monopotassium phosphite (CAS 13977-65-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1023803-7 (accessed 2026-10-25).

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