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Sodium silicate News & Market Updates

Feedstock and modulus drive everything. Dry-process production dominates, using soda ash and quartz sand melted at 1,400-1,500 C, and soda ash jumped from RMB 1,250/t to 2,420/t in 2021 while sulfur rose 140%. Those moves squeezed downstream silica margins from 34.5% to 32.9%.…

Daniel Foster on Aug 11, 2026

New capacity keeps coming. A Hunan producer is building 92,000 t/y of solid and 23,600 t/y of liquid sodium silicate, while Yuanli Chemical already runs 300,000 t/y of solid material with utilization near 100% and more lines under construction. Much of this is captive: sodium…

James Morrison on Aug 06, 2026

That is where the value sits. Sodium silicate is the starting point for colloidal silica used in semiconductor polishing, precision casting, coatings and catalyst carriers, and for electronic-grade CMP slurry via ion exchange. It also feeds high-purity quartz sand for…

Daniel Foster on Aug 02, 2026

Properties

CAS Number: 1344-09-8
EINECS No.: 215-687-4
Molecular Formula: Na2O3Si
Molecular Weight: 122.06
InChI: InChI=1/2Na.O3Si/c;;1-4(2)3/q2*+1;-2
Density: 2.33g/mLat 25°C(lit.)
Melting Point: 1410°C(lit.)
Boiling Point: 2355°C(lit.)
Water Solubility: very slightly soluble cold H2O [MER06]
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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