synthetic cryolite

Use of trisodium hexafluoroaluminate is extensive inmetallurgy,and use in other many industries,such as glass,ceramics etc. Specifications

Use of trisodium hexafluoroaluminate is extensive inmetallurgy,and use in other many industries,such as glass,ceramics etc.

Specifications

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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