Sodium Metasilicate Anhydrous/Pentahydrate/Nonahydrate
Appearance: White crystal or powder
HS CODE:2839110000
UN NO: 3253
SPECIFICATIONS
ITEM | Standard | ||
Na2SiO3 | Na2SiO3 5H2O | Na2SiO3 9H2O | |
Sodium oxide(Na2O)% | 50.0-52.0 | 28.50_30.00 | 20.0-22.0 |
Silica(SiO2)% | ≥45.0 | 27.30_29.20 | 19.0-22.0 |
Water insoluble% | ≤0.25 | ≤0.2 | ≤0.30 |
Iron(Fe)% | ≤0.03 | ≤0.03 | ≤0.05 |
Whiteness | ≥75 | ≥75 | ≥70 |
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.
