::  Magnesium Fluoride Magnesium Fluoride   1. Molecular formula:MgF2 2. Molecular weight:62.31 3. Property:Colorless crystal of tetragonal system or powder;soluble in nitric acid,slightly in dilute acid and hardly in water and alcohol. 4. Usage:in manufacture of ceramics,glass and flux in smelting Magnesium and Aluminium,mirror in optical instruments and coating of filter and soldering. 5. Specificatios Assay: ≥98% (measured against igniting under high temperature.) Impurity level:   Impurity name Index Na ≤0.1% Ca ≤0.6% SiO2 ≤1.0% SO4 ≤0.2% H2O ≤2% Fe ≤0.05% Pb ≤0.02% 6. Packing:25kg plastic woven bag.