Potassium Aluminium Fluoride Molecular Formula: AlF6K3 Formula Weight: 258.27 CAS No.: 13775-52-5 Potassium Aluminium Fluoride -Elpasolite ItemTest DataAppearanceGrey-white crystallineAbsorbed Moisture, %1.0Solubility in H2O at 25°C25 mg/100 mlDensity, g/cm32.67Melting Point, °C580Al, %18.31K, %28.15F, %48.07Si, % 0.12Fe, % 0.26 potassium aluminum fluoride supplier