1. Formula: K3AlF6  
2. CAS No: 13775-52-5
3. M. W.: 258.28
4. Properties: White or pale gray powder; Slightly soluble in water; Hydrogen fluoride released in the reaction to the above; Dissolved slowly in strong acid to release Hydroxide Fluoride. Melting point: 560.
5. Specification (%):
Index  Industrial Grade  
Assay  98%min  
Al  15-19%  
F   48-51%  
Fe   0.01%max  
Cl  0.1%max.  
Heavy metal  0.01%  
Melting point  550-560
White degree  90%  
Particle size  80% overpass 200  
6. Application: Soldering flux for Aluminum and its alloy; Flux in glass and ceramic industries, used for the production of welding agents, blasting and phyrotechnics, and for the production of abrasives.
7. Packing: 25kg net, plastic woven bags or fiber drum.