Skip to main content

Sodium silicate

CAS 1344-09-8Na2O3Si122.063 g/mol

Sodium silicate is an inorganic sodium salt having silicate as the counterion. It contains a silicate ion.

IUPAC: disodium;dioxido(oxo)silane

Sodium silicate molecular structure

PubChem

Physical & Chemical Properties

Physical and chemical properties
Melting Point1089 °C
Boiling PointBOILING POINT: 100 °C -6H20 /NONAHYDRATE/
Density1.1 to 1.7 at 68 °F (USCG, 1999)
SolubilityVERY SOL IN COLD & HOT WATER; SOLUBLE IN DILUTE SODIUM HYDROXIDE; INSOLUBLE IN ALCOHOL, ACIDS /NONAHYDRATE/
pHPH: ABOUT 12.5; HAS RELATIVELY HIGH BUFFER CAPACITY /0.5% SOLUTION/
AppearanceSodium silicate appears as a powdered or flaked solid substance. Strong irritant to skin, eyes, and mucous membranes. May be toxic by ingestion. Concentrated aqueous solutions used as a glue.

Data: PubChem · Last updated: 4/20/2026

GHS Classification

No GHS classification data available.

Classification data is sourced from ECHA.

Regulatory Compliance

TSCA

Listed

note: Status based on EPA TSCA Active Inventory · inventory name: TSCA Chemical Substance Inventory

View source
SVHC

Not Listed

View source
FDA GRAS

Not Listed

View source

AI Compliance Report

Available on the Pro plan

Upgrade to Pro

Global Trade Intelligence

No trade flow data available for this chemical.

HS Code(s): 2839

Data: UN Comtrade

Suppliers on Chem-Exchange

No suppliers currently listing Sodium silicate

List Your Products

Safety Data Sheets

No SDS documents available

Upload an SDS document

Related Chemicals

AI-Powered Tools

Compliance Report

Available on the Pro plan

Upgrade to Pro

Find Alternatives

Available on the Enterprise plan

Upgrade to Enterprise

Ask a Question

Available on the Pro plan

Upgrade to Pro