Molecular formula: AIF3 It is white powdery solid, mainly used to adjust the molecular ratio of electrolyte in aluminium electrolytic cell. The method of making non-water AIF3 can reduce melting point, improve conductivity of electrolyte, reduce the environment pollution, enhance the production yield, and reduce the cost of electrolysis. Item Chemical Composition, % ≥ Impurity,≤ F Al Na SiO2 Fe2O3 SO42- P2O5 H2O 550, one hours Special 1st grade 61 30.0 0.5 0.28 0.10 0.5 0.05 0.5 Special 2nd grade 60 30.0 0.5 0.30 0.13 0.8 0.05 1.0 1st grade 58 28.2 3.0 0.30 0.13 1.1 0.05 6.0 2nd grade 57 28.0 3.5 0.35 0.15 1.2 0.08 7.0