Synthetic Cryolite

Synthetic Cryolite (Na3AlF6, sodium hexafluoroaluminate, sodium aluminium fluoride) is a white crystalline powder manufactured from hydrofluoric acid, sodium carbonate, and aluminium.

Similar term(s): sodium aluminum fluoride, sodium fluoaluminate, sodium fluoroaluminate, sodium hexafluoroaluminate, trisodium hexafluoroaluminate, sodium aluminofluoride, aluminum sodium fluoride, kryolith, kryocide, cryolite, ice spar.

We are engaged in offering a quality approved range of Synthetic Cryolite.


• Stable physical properties
• Safe to use
• Longer shelf life

Synthetic cryolite is used chiefly as a flux in the electrolytic production of aluminum as it effectively lowers down the melting point of alumina. It is used in the glass and enamel industries, in bonded abrasives as a filler, in making salts of sodium and aluminum and porcelaneous glass and in the manufacture of insecticides. Cryolite is a relatively safe fruit and vegetable insecticide.


Synthetic Cryolite is supplied as a dry powder in 25kg paper sacks.

Product details:

CAS No.: 13775-53-6

Purity:  98%,99%

Appearance: White crystal or powder

Usage Industrial
Physical State Powder
Packaging Size 25kg
Packaging Type Bag
Grade Standard Technical Grade
Minimum Order Quantity 500 Kilogram



Specifications Sodium Cryolite
Assay 98.5%
pH Value 7.5 – 9.0
Fluorine Value as F 54.28%
Aluminium 12.68%
Free HF 0.002%
Silica as SiO2 0.6%
Chloride as Cl 0.003%
Sulphate as SO4 0.004%
Iron as Fe 0.05%
Lead Pb 0.02%
Specific Gravity 2.95 to 3.0.
Molar Mass 209.9 g mol-1
Molecular Formula Na3AlF6
Appearance Colorless to white, also brownish, reddish and rarely black, Monoclinic crystals
Melting Point 1012 °C
Solubility Soluble in AlCl3 solution, soluble in H2SO4 with the evolution of HF, which is poisonous.
Solubility in Water Insoluble in water