Sodium orthosilicate

原硅酸钠

Also known as: Tetrasodium orthosilicate, Tetrasodium silicate, Silicic acid (H4SiO4), tetrasodium salt, Sodium silicate (4-)

Sodium orthosilicate (CAS 13472-30-5) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Na4O4Si and a molecular weight of 184.04200 g/mol. It is also known as Tetrasodium orthosilicate, Tetrasodium silicate and Silicic acid (H4SiO4), tetrasodium salt. Key property: a melting point of 1018ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
13472-30-5
Jingsj CID
J-29726-6
Molecular Formula
Na4O4Si
Chinese Name
原硅酸钠
Molecular Weight
184.04200 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Physicochemical Properties

Melting Point1018ºC

Frequently Asked Questions

What is the CAS number of Sodium orthosilicate?

The CAS number of Sodium orthosilicate is 13472-30-5.

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

Sodium orthosilicate has molecular formula Na4O4Si and molecular weight 184.04200 g/mol.

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

Last updated:

How to cite: Jingsj. "Sodium orthosilicate (CAS 13472-30-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29726-6 (accessed 2026-10-25).

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