Potassium silicate

硅酸钾

Also known as: Potassium water glass, Soluble potash glass, Silicic acid, potassium salt, Potassium metasilicate, Potassium polysilicate, tetrapotassium orthosilicate, pyramid120, Kasil

Potassium silicate (CAS 1312-76-1) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula K4O4Si and a molecular weight of 248.47600 g/mol. It is also known as Potassium water glass, Soluble potash glass and Silicic acid, potassium salt. Key properties include a boiling point of > 100ºC and a density of 1.39 g/cm3 (20ºC). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1312-76-1
Jingsj CID
J-48223-9
Molecular Formula
K4O4Si
Chinese Name
硅酸钾
Molecular Weight
248.47600 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point> 100ºC
Density1.39 g/cm3 (20ºC)

Frequently Asked Questions

What is the CAS number of Potassium silicate?

The CAS number of Potassium silicate is 1312-76-1.

What are the molecular formula and molecular weight of Potassium silicate?

Potassium silicate has molecular formula K4O4Si and molecular weight 248.47600 g/mol.

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

Last updated:

How to cite: Jingsj. "Potassium silicate (CAS 1312-76-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48223-9 (accessed 2026-10-25).

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