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 |