
Sodium Metasilicate Pentahydrate CAS 10213-79-3
Classification:Silicate
CAS No.:10213-79-3
Molecular Fomula:Na2SiO3.5H2O
Appearance:White powder or granular
Grade Standard:Industrial Grade
Sodium Metasilicate Pentahydrate CAS 10213-79-3
Sodium Metasilicate Pentahydrate Product Description
Sodium Metasilicate Pentahydrate
Classification:Silicate
CAS No.:10213-79-3
Molecular Fomula:Na2SiO3.5H2O
Appearance:White powder or granular
Grade Standard:Industrial Grade

Sodium Metasilicate Pentahydrate Specifications
Checking Item | Test Standard | Test Result |
(HG/T2568-08) | ||
Sodium oxide(Na2O)% | 28.70-30.00 | 29.01 |
Silica(SiO2)% | 27.80-29.20 | 29.08 |
Water insoluble% | ≤0.05 | 0.03 |
Fe(ppm) | ≤100ppm | 58 |
Whiteness% | ≥80 | 87 |
Bulk Density | 0.80-0.97g/cc | 0.95 |
PH of 1.0% Solution | 12-13 | 12.50 |
Melting Point | 72.2℃ | 72.2℃ |
ParticularSize %(16-30 mesh) | ≥90 | 97 |
Sodium Metasilicate Pentahydrate Application
1. It has the strong capability of cleaning, widely used for the manufacture of a variety of detergents in detergent industry, so it is the best substitute for STPP, reducing environmental pollution.
2. Sodium meta silicate provides anti-corrosion protection to metals (zinc, aluminum, etc.) and is used as metal cleaner and metal surface treatment agents.
3. In the textile industry: mainly used as printing and dyeing auxiliaries, fabric pre-treatment agent and as detergents in cooking and dyeing cotton yarn.
4. In the Paper & Printing Industry: It can be used as adhesives, old paper deinking agent, paper surface treatment agent and printing detergent.
5. In the ceramic industry: used for sludge thinners. It is especially suitable for additives used in slip-casting forming and ceramic forming.
6. In the metallurgical industry: used as inhibitors and dispersing agent of silicon-containing minerals, smelting furnace dispersants, fast-drying agents, and foundry and separating agents.
7. In the construction field: used for concrete dispersion agent and hardening accelerator. It is also used as coagulation accelerator.

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