synthetic cryolite white powder

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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

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3> Packing: package can be 25/50/1000kg plastic woven bags with shrink film, or according to customers requirements.

4> Specifications: GB4291-1999

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
Ignite on 550oC≤	2.5	3.00	3.00
CaO%≤	0.10	0.15	0.20

synthetic cryolite white powder