Chemical Name: Synthetic Cryolite，Aluminum sodium fluoride
CAS No.:13775-53-6 EC No.: 239-148-8
Chemical formula: Na3AlF6
Properties:
It is crystalline white powder. Slightly soluble in water, density 2.95-3, melting point 1000 ℃ , 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.
Uses:
It’s mainly used as a flux in the aluminum smelting by fused-salt electrolysis; an opacifier andauxiliary solvent of glass
and enamel; an insecticide of crops; a flux in aluminum alloy casting; and in the production of ferrous alloy and effervescing
steel; as well as a wear-resistant filler for resin and rubber-boned abrasive wheels.
Package： 25kg plastic woven bag or upon customer request.
Item | Synthetic Cryolite |
F% Min | 53.0 |
Na% Min | 12.0 |
Al % Min | 32.0 |
SiO2 % Max | 0.25 |
Fe2O3% Max | 0.05 |
SO4% Max | 0.6 |
CaO % Max | 0.20 |
P2O5% Max | 0.03 |
H2O% Max | 0.20 |
Ignite on 550 ℃ Max | 2.5 |
