Formula: Na3AlF6, MW: 209.94 
 Usage: cryolite, is mainly used for aluminum electrolytic flux is also used as a rubber wheel the wear filler Enamel milky agent, glass sunscreens and metal flux. 
 Nature: one, the appearance of white, yellowish, slightly gray or light red, particle size in accordance with the purpose or customer requirements to be adjusted. 2, the molecular ratio, the molecules can be stabilized at between 2.7-3.0; main content, low impurity content, real high yield 
 CAS # :13775-53-6 
 Product specifications two a premium 
 Implementation indicators GB/T4291--1999 GB/T4291--1999 GB/T4291--1999 
 Aluminum (Al)% ≥ 13 ≥ 13 ≥ 13 
 Fluoride (F)% ≥ 53 ≥ 53 ≥ 53 
 Sodium (Na)% ≤ 32 ≤ 32 ≤ 32 
 Sulfate (SO42-)% ≤ 0.3 ≤ 0.3 ≤ 0.3 
 Silicon dioxide (SiO2)% ≤ 0.4 ≤ 0.32 ≤ 0.25 
 Ferric oxide (Fe2O3)% ≤ 0.1 ≤ 0.08 ≤ 0.05 
 Calcium chloride (of CaCl)% ≤ 2 ≤ 0.15 ≤ 0. 
 Phosphorus pentoxide (P2O5)% ≤ 0.03 ≤ 0.03 ≤ 0.02 
 In the control test 
 Appearance of the identification of white powder white powder white powder 
 Loss on drying (105 ° C / 2H)% ≤ 1.5 ≤ 1.5 
 Whiteness (70-90um particle size)% ≥ 95 ≥ 96 ≥ 96 
 Transmittance (15% aqueous solution)% ≥ 90 ≥ 92 ≥ 90 
 Granularity (USSCREEN) of 90% through 450 mesh and 90% through 450 mesh and 90% through 450 mesh