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Specifications
White crystal or powder the Sodium Metasilicate Pentahydrate, Sodium metasilicate nonahydrate, Sodium Metasilicate Anhydrous
Sodium Metasilicate Pentahydrate
MF: Na2SiO3.5H2O
HS CODE: 2839110000
UN NO: 3253
Purity: SiO2 27%~29%
Appearance: White crystal or powder
Application: Detergent, ceramic, textile industry, Paper & Printing, construction, metallurgical industry
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.
| ITEM |
Testing result |
| Sodium oxide(Na2O)% |
20.0-22.0 |
| Silica(SiO2)% |
19.0-22.0 |
| Water insoluble% |
≤0.30 |
| Iron(Fe)% |
≤0.05 |
| Whiteness |
≥70 |
Na
2SiO
35H
2O(lzl-5)
| ITEM |
NATIONAL QUALITY INDEX |
| Sodium oxide(Na2O)% |
28.50_30.00 |
| Silica(SiO2)% |
27.30_29.20 |
| Water insoluble% |
≤0.2 |
| Iron(Fe)% |
≤0.03 |
| Whiteness |
≥75 |
| PH(1%SOLUTION) |
12.5±1.0% |
Na
2SiO
3 (lzl-0)
| ITEM |
Testing result |
| Sodium oxide(Na2O)% |
50.0-52.0 |
| Silica(SiO2)% |
≥45.0 |
| Water insoluble% |
≤0.25 |
| Iron(Fe)% |
≤0.03 |
| Whiteness |
≥75 |
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