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 1000 o C, 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 customer's 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
|
CaO%≤
|
0.10
|
0.15
|
0.20
|
Ignite on 550oC≤
|
2.5
|
3.00
|
3.00
|
|