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Sodium metasilicate pentahydrate

五水偏硅酸钠

Also known as: SODIUM METASILICATE PENTAHYDRATE, Sodium metasilicate 5H2O, Sodium silicate, pentahydrate, Disodium dioxido(oxo)silane pentahydrate, SILICIC ACID, DISODIUM SALT, PENTAHYDRATE, SILICIC ACID, DISODIUM SALTS (CRYSTALLINE PENTAHYDRATE), MFCD00149176, EINECS 229-912-9, SODIUMMETA-SILICATE, PENTAHYDRATE, GRANULAR, PRACTICAL

Sodium metasilicate pentahydrate (CAS 10213-79-3) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula H10Na2O8Si and a molecular weight of 212.140 g/mol. It is also known as SODIUM METASILICATE PENTAHYDRATE, Sodium metasilicate 5H2O and Sodium silicate, pentahydrate. Key properties include a melting point of 1088°C and a density of 2.61. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
10213-79-3
Jingsj CID
J-1504045-9
Molecular Formula
H10Na2O8Si
Chinese Name
五水偏硅酸钠
Molecular Weight
212.140 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Physicochemical Properties

Melting Point1088°C
Density2.61

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger

Frequently Asked Questions

What is the CAS number of Sodium metasilicate pentahydrate?

The CAS number of Sodium metasilicate pentahydrate is 10213-79-3.

What are the molecular formula and molecular weight of Sodium metasilicate pentahydrate?

Sodium metasilicate pentahydrate has molecular formula H10Na2O8Si and molecular weight 212.140 g/mol.

Is Sodium metasilicate pentahydrate hazardous?

Sodium metasilicate pentahydrate has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "Sodium metasilicate pentahydrate (CAS 10213-79-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1504045-9 (accessed 2026-10-24).

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