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Synonym: Sodium fluoroaluminate Molecular formula: Na3AlF6 Molecular weight: 209.94 1 Properties: It is crystalline white powder. Slightly soluble in water, density 2.95-3, melting point 1000 o C, easily absorbing water and become damp, decomposed by strong acids like sulfuric acid and hydrochloride, then producing hydrofluoric acid and relevant aluminum salt and sodium salt. 2 Uses: Mainly used in flux of electrolytic aluminum, pesticide, flux of ceramic colors, anti-rubbing filling agent of resin and rubber, electrolytic liquid for production of iron alloy rimmed steel and furnish of emery wheel.
Ingredient | Super | First grade | Second grade |
F%≥ | 53 | 53 | 53 |
Na% ≥ | 32 | 32 | 32 |
Al≥ | 13 | 13 | 13 |
H2O%≤ | 0.4 | 0.5 | 0.8 |
SiO2≤ | 0.25 | 0.36 | 0.4 |
Fe2O3%≤ | 0.05 | 0.08 | 0.10 |
SO4%≤ | 0.7 | 1.20 | 1.30 |
P2O5%≤ | 0.02 | 0.03 | 0.03 |
CaO%≤ | 0.10 | 0.15 | 0.20 |
Ignite on 550 o C≤ | 2.5 | 3.00 | 3.00 |
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