1) Molecular formula: Na3AlF6
2) Molecular weight: 209.94
3) Property: Aluminum sodium fluoride is white crystalline powder. Slightly soluble in water, density is 2.95～3, melting point is about 1000οC, can be broken down by sulfuric acid and hydrochloric acid and generate hydrofluoric acid and revelant aluminium salts and sodium salts.
4) Usage: Mainly used as the flux of electrolytic aluminium, insecticide in agriculture, flux of enamel glaze, wear resistant filler of resin and rubber, etc.
5) Technical index: Execute national GB/T4291-2007 standard
|
Chemical composition/%
|
CH-0
|
CH-1
|
CM-0
|
|
| Fluorine (F)% ≥ |
52
|
52
|
53
|
53
|
| Sodium (Na)%≤ |
33
|
33
|
32
|
32
|
| Aluminium (Al)%≥ |
12
|
12
|
13
|
13
|
| Hydroscopic water ≤ |
0.20
|
0.40
|
0.20
|
0.40
|
| Silicon oxide (SiO2)%≤ |
0.25
|
0.36
|
0.25
|
0.36
|
| Ferric oxide (Fe2O3)%≤ |
0.05
|
0.08
|
0.05
|
0.08
|
| Sulfate (SO4)% ≤ |
0.6
|
1.0
|
0.6
|
1.0
|
| Phosphorus pentoxide (P2O5)% ≤ |
0.02
|
0.03
|
0.02
|
0.03
|
| Calcium oxide (CaO)% ≤ |
0.15
|
0.20
|
0.20
|
0.6
|
|
Physical properties/%
|
|
|
|
|
| Loss on ignition (Mass fraction)≤ |
2.0
|
2.5
|
2.0
|
2.5
|
