Characteristic:
Appearance and propertie: white or light yellow crystalline powder or granules, hexagonal system, slightly acid odor, easy deliquescence.
pH: acidic aqueous solution.
Relative density: 2.4
Melting Point(℃): 100 (decomposition)
Concentration: Pure
Vapor Pressure: 1 mm Hg (100 ° C)
Solubility: Soluble in many organic solvents such as chloroform; carbon tetrachloride; absolute alcohol and ether.