Characteristic

 

Nickel nitrate is the inorganic compound Ni(NO₃)₂ or any hydrate thereof. The anhydrous form is not commonly encountered, thus "nickel nitrate" usually refers to nickel(II) nitrate hexahydrate.

Chemical formula:Ni(NO₃)₂

Molar mass:182.703 g/mol (anhydrous);290.79 g/mol (hexahydrate)

Appearance:emerald green hygroscopic solid

Odor:odorless

Density:2.05 g/cm³ (hexahydrate)

Melting point:56.7 °C (134.1 °F; 329.8 K) (hexahydrate)

Boiling point:136.7 °C (278.1 °F; 409.8 K) (hexahydrate)

Solubility in water:243 (hexahydrate) g/100ml (0 °C)

Solubility:soluble in ethanol

Magnetic susceptibility (χ):+4300.0·10⁻⁶ cm³/mol (+6 H₂O)

Refractive index (nD):1.422 (hexahydrate)

Crystal structure:monoclinic (hexahydrate)

 

Application

 

Nickel plating, manufacturing of ceramic colorsNickel(II) nitrate hexahydrate is used as a precursor in the manufacturing of other nickel salts and supported nickel catalysts. It finds use as a catalyst in organic synthesis. Further it is used in electroplating and as a mordent in textile dyeing. It is a precursor for preparing nickel sulfide-reduced graphene oxide (RGO) composite powders with high initial capacities and good cycling performance. It can be employed in the preparation of nickel and nickel oxide nanocrystals impregnated O-MWCNTs (oxygen-functionalized multi-walled carbon nanotubes) with potential applications in semiconductor industries. It finds use in improving cycling stability ad rate capability of Li₂MnO₃.