... SGS CERTIFICATE pure Nickel Nitrate Formula: Ni(NO3)2.6H2OCAS No.: 13478-00-7M.W.: 290.81Properties: Aquamarine platelike crystal belonging ... to monoclinic crystal, density:2.05g/cm3, melting point56.7,boiling point:136.7°C(saturated solution). Freely soluble in water, liquid ...