Sodium silicate Price Chart & Market Analysis 2026

Sodium silicate Price Information Spec: China national standards

Newest Price 428.75

Price Date 20210323

Day's Change +79.75

Day's Range 428.75 - 508.5

Month's Change 0

Month's Range 0 - 0

Year's Change 0

Year's Range 0 - 0

Opinions

What determines the price of sodium silicate in China?

Modulus is the negotiation lever most buyers underuse. Two suppliers quoting the same tonnage can differ sharply if one delivers 2.4 modulus and the other 3.2, since downstream silica and zeolite yields shift. Always specify modulus and impurity limits in the contract, not just price per ton, or you absorb the conversion cost difference.

Why is China's sodium silicate capacity still expanding when the market is already oversupplied?

Watch the captive-versus-merchant split closely. When silica and silica gel producers self-supply, merchant liquid silicate volumes tighten and spot prices can spike even amid headline surplus. Buyers without integration should secure annual contracts rather than rely on spot, because the merchant pool is shrinking faster than total capacity suggests.

Can Chinese sodium silicate move beyond detergents and paper into high-purity applications?

The bottleneck is purification economics, not chemistry. Ion exchange resins and ultrapure water push costs far above detergent-grade material, so only integrated producers with captive feedstock can justify the leap. Buyers sourcing electronic-grade silicate should audit impurity specs at PPB level and verify resin regeneration cycles, since inconsistent regeneration is the most common cause of batch rejection.

Overview

Sodium silicate (sodium metasilicate, water glass, CAS 1344-09-8) is a white to colourless solid or viscous liquid, with a density of 2.33 g/mL, a melting point of 1410°C, and a boiling point of 2355°C. It is a versatile inorganic chemical intermediate, serving as a key precursor for silica-based materials and a binder in numerous industrial applications.

Industrial: a raw material for producing silica sol (colloidal silica), used in precision casting, coatings, catalyst supports, and semiconductor polishing.
Construction & materials: a binder and adhesive in refractories, cement, and fire-resistant materials.
Chemical synthesis: an intermediate for high-purity quartz sand, nano-silica, and precipitated silica (white carbon black) for electronics and green tires.
Textile & paper: used as a sizing agent, detergent builder, and in papermaking processes.

China's production capacity exceeds 5.5 million tonnes annually, with dominant grades produced via dry (soda ash or sodium sulfate fusion) and wet (caustic soda) routes. The sodium sulfate dry process is being phased out due to high SO₂ emissions, while ion-exchange purification enables PPB-level purity for electronic-grade applications. The market is largely self-sufficient, with a trend toward downstream integration into silica sol and specialty silicas.

Key domestic producers:
Yuanli Co. – solid water glass and downstream silica products.
Quechen Silicon Chemical – integrated sodium silicate to precipitated silica chain.
Heshi (Hubei) Silicon Products – silica sol production from sodium silicate.
Heshi (Guangdong) Silicon Products – silica sol for semiconductor and coating applications.

Properties

Name

Sodium silicate

49fg

Agrosil LR

Agrosil S

agrosillr

CAS Number

1344-09-8

EINECS No.

215-687-4

Risk Codes

S26;S36/37;S45;S7/9;S28;S36/37/39;S36;S27

Safety Description

R11;R36/38;R34;R23/24/25;R36/37/38;R35;R20/21/22;R37

HS Code

2839190000

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ChemPriceHub

Sodium silicate Price Information Spec: China national standards

Opinions

What determines the price of sodium silicate in China?

Why is China's sodium silicate capacity still expanding when the market is already oversupplied?

Can Chinese sodium silicate move beyond detergents and paper into high-purity applications?

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