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Sodium stannate
Molecular formula: NaSnO3•3H2O Molecular weight: 266.73
white crystal or powder.
Uses: as fire retardant, weighting agent and mordant of textiles, also can be used for making glass, ceramic, plating of alkaline tin, copper tin alloy and zinc tin alloy, etc.
Standard quality of product | ||||||
Standard name | Sn | Free alkali | Chloride | Water-insolubles | Pb | As |
Standard values (%) | ≥42 | ≤3.0 | ≤0.01 | ≤0.05 | ≤0.001 | ≤0.001 |