Sodium polyphosphate

聚磷酸钠

Also known as: Sodium polyphosphate, Polyphosphoric acids, sodium salts, Sodium phosphate glass, Sodium metaphosphate (glass)

Sodium polyphosphate (CAS 50813-16-6) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Na3O10P3 and a molecular weight of 321.88500 g/mol. It is also known as Polyphosphoric acids, sodium salts, Sodium phosphate glass and Sodium metaphosphate (glass). Key properties include a melting point of 600°C and a density of 2.5. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
50813-16-6
Jingsj CID
J-36966-0
Molecular Formula
Na3O10P3
Chinese Name
聚磷酸钠
Molecular Weight
321.88500 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Physicochemical Properties

Melting Point600°C
Density2.5

Frequently Asked Questions

What is the CAS number of Sodium polyphosphate?

The CAS number of Sodium polyphosphate is 50813-16-6.

What are the molecular formula and molecular weight of Sodium polyphosphate?

Sodium polyphosphate has molecular formula Na3O10P3 and molecular weight 321.88500 g/mol.

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

Last updated:

How to cite: Jingsj. "Sodium polyphosphate (CAS 50813-16-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36966-0 (accessed 2026-10-24).

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