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The quality standards of Sodium Metasilicate Anhydrous（HG/T2568-2008）
Items |
National first-rate indexes |
Product testing results |
Sodium oxide (Na2O)% |
50.0-52.0 |
50.8 |
Silicon oxide (SiO2)% |
≥45 |
46.6 |
Water insoluble matter % |
≤0.25 |
0.01 |
Iron levels (Fe)% |
≤0.03 |
0.01 |
White degree |
≥75 |
87 |
In the textile industry, our sodium silicate and metasilicate are used for cleaning, scouring, bleaching and dye fixing operations. Dye fixation: Our sodium silicate is used as an alkaline buffer to maintain the stability of reactive dyes. Bleaching agent stability: peroxide, used for bleaching, degraded under the catalysis of copper, iron, manganese and other metals. Adding our water glass will deactivate these metals and prevent premature degradation of active oxygen. Cleaning: Our sodium metasilicate is particularly suitable for removing light or heavy grease and soil.
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