Commodity Potassium Fluoroborate Molecular formula KBF4 Molecular weight 125.9 Property White powder . Density :2.498g/m3 . Melting point and starting to decompose at that point. Slightly dissolve in water and hot alcohol . Ca 0.05% CI 0.1% Fe 0.03% Heavy Metal 0.01%max SO4 0.01%max Mg 0.01%