| Product name | Sodium silicate |
| Alias | Silicic acid, sodium salt; Sodium silicate solution; Agrosil LR; Agrosil S; Britesil; Britesil H 20; Britesil H 24; Carsil (silicate); Caswell No. 792; DP 222; Dryseq; EPA Pesticide Chemical Code 072603; HK 30 (van); HSDB 5028; L 96 (salt); Metso 99; N 38; Portil A; Pyramid 1; Pyramid 8; Sikalon; |
| CAS RN | 1344-09-8;106985-35-7;11105-00-3;37299-97-1;12013-79-5 |
| EINECS No. | 215-687-4 |
| Molecular formula | Na2SiO3 |
| Molecular weight | 100.0814 |
| Properties | Properties Colorless, light yellow or cinerous transparent viscous liquid. Solubility Soluble in water and presents alkaline. |
| Uses | As adhesive, detergent, filler of soap, soil stabilizer, dyeing auxiliary, sizing agent and bleacher of textile industry, flotation agent, etc. |
Quality standard of sodium metasilicate anhydrous (HG/T2568-2008)
| Item | National superior product index | Product test results |
| Sodium oxide (Na2O)% | 50.0-52.0 | 51.6 |
| Silicon oxide (SiO2)% | ≥45 | 45.9 |
| Water insoluble matter % | ≤0.25 | 0.01 |
| Iron content (Fe)% | ≤0.03 | 0.01 |
| Whiteness | ≥75 | 88 |
Quality standard of sodium metasilicate pentahydrate (HG/T2568-2008)
| Item | National superior product index | Product test results |
| Sodium oxide (Na2O)% | 28.7-30.0 | 28.9 |
| Silicon oxide (SiO2)% | 27.8-29.2 | 28.2 |
| Water insoluble matter % | ≤0.05 | 0.01 |
| Iron content (Fe)% | ≤0.01 | 0.005 |
| Whiteness | ≥80 | 90 |
Quality standard of sodium metasilicate nonahydrate (HG/T2568-2008)
| Item | National superior product index | Product test results |
| Sodium oxide (Na2O)% | 21.5-23.0 | 22.1 |
| Silicon oxide (SiO2)% | 21.0-22.5 | 21.9 |
| Water insoluble matter % | ≤0.05 | 0.01 |
| Iron content (Fe)% | ≤0.015 | 0.005 |
| Whiteness | ≥80 | 90 |
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