Molecular Formula: Na3AlF6
Molecular Weight: 209.94
Properties: It is colorless monoclinic system crystal. Non-pure product is greyish white, light yellow, light red or black. M.P.: 1025℃; bulk density: 0.6-1.0g/L, true density: 2.95-3.05g/cm3; specific wt.: 2.75-3.00g/cm3, melting heat: 107KJ; slightly soluble in water, aqueous solution is acidic.
Use: Mainly used as fluxing agent for aluminium electrolysis; also used as anti-wear additive for abrasive products; as flux for iron alloy and rimmed steel, as deoxidizer and residue eliminator for casting, as emulsifying agent for enamel, as opacifier for glass etc.
Quality Spec.:
Quality standard
GB/4291-1999
Grade |
Chemical compositions |
||||||||
|
F |
AL |
Na |
SiO2 |
Fe2O3 |
S04 |
P2O5 |
H02 |
Ignition (550℃) |
|
|
Min. |
Max. |
||||||||
|
Special grade (A) |
53 |
13 |
32 |
0.25 |
0.05 |
0.7 |
0.02 |
0.4 |
2.5 |
|
First grade (B) |
53 |
13 |
32 |
0.36 |
0.08 |
1.0 |
0.03 |
0.5 |
3.0 |
Note:
1. Molecular proportion range: 1.0-3.0, adjustable to meet the different needs of customers;
2. Fineness can be adjusted to meet the needs of customers(-120～-325mesh);
3. Assay≥99%.
Packing & Weight
In laminating plastic woven bag lined with plastic film, net wt. 25kg, 50kg, 1000kg/bag.