High-purity Optical Glass Ammonium Fluoride NH4F

Ammonium fluoride Molecular formula: NH4F C A S: 12125-01-8 Physical properties: phyllodes colorless or needle-like crystals, hexagonal columnar crystals obtained after sublimation. Deliquescent. Soluble in water, acidic aqueous solution. Soluble in alcohol, insoluble in acetone and ammonia. Melting point 98 ℃. Boiling point, 65 ° C 760mmHg Uses: Preparation of high-purity fluoride salt, used as a glass etchant, the metal surface of the chemical polishing agent, disinfectants, preservatives, fibers mordant. Also for the extraction of rare elements.