синтетический криолит

SYNTHETIC CRYOLITE 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 1000oC, 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 . 3> Packing: package can be 25/50/1000kg plastic woven bags with shrink film, or according to customers requirements. 4> Specifications: GB4291-1999 IngredientSuperFirst gradeSecond gradeF%≥535353Na% ≥323232Al≥131313H2O%≤0.40.50.8SiO2≤0.250.360.4Fe2O3%≤0.050.080.10SO4%≤0.71.201.30P2O5%≤0.020.030.03Ignite on 550oC≤2.53.003.00CaO%≤0.100.150.20