Nickel(II) nitrate

From Sciencemadness Wiki
Jump to: navigation, search
Nickel(II) nitrate
IUPAC name
Nickel(II) nitrate
Other names
Nickel bis(nitrate)
Nickel dinitrate
Nickelous nitrate
Ni(NO3)2 (anhydrous)
Ni(NO3)2·6H2O (hexahydrate)
Molar mass 182.703 g/mol (anhydrous)
290.79 g/mol (hexahydrate)
Appearance Turquoise or greenish solid (hydrate)
Odor Odorless
Density 2.05 g/cm3 (hexahydrate) (at 20 °C)
Melting point 56.7 °C (134.1 °F; 329.8 K) (hexahydrate)
Boiling point 136.7 °C (278.1 °F; 409.8 K) (hexahydrate)
>200 °C (anhydrous)
94.17 g/100 ml (anhydrous) (20 °C)[1]
243 g/100 ml (hexahydrate) (0 °C)
Solubility Soluble in ethanol, methanol
Slightly soluble in DMSO, ethylene glycol, hydrazine[2]
Vapor pressure ~0 mmHg
Safety data sheet Sigma-Aldrich (hexahydrate)
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
1,620 mg/kg (rat, oral)
Related compounds
Related compounds
Nickel(II) perchlorate
Nickel(II) sulfate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Nickel(II) nitrate is the chemical compound Ni(NO3)2. It is more commonly encountered as hydrate, more exactly the hexahydrate form, Ni(NO3)2·6H2O or [Ni(H2O)6](NO3)2.



Nickel(II) nitrate reacts with NaOH to yield sodium nitrate and forming a greenish precipitate of nickel(II) hydroxide.

Ni(NO3)2 + 2 NaOH → 2 NaNO3 + Ni(OH)2


Nickel(II) nitrate is a blue-green/turquoise hygroscopic solid. It is soluble in water and low-weight primary alcohols.


Nickel(II) nitrate is sold by chemical suppliers.


Nickel nitrate can be prepared by reacting nickel oxide with nitric acid:

NiO + 2 HNO3 → Ni(NO3)2 + H2O

This route produces the hexahydrate form. Anhydrous nickel nitrate cannot be produced by heating nickle nitrate hexahydrate, since it decomposes upon heating.

Several routes exist for the preparation of the anhydrous form: Nickel nitrate hexahydrate may be reacted with an excess dinitrogen pentoxide, then gently dried under vacuum.

Another route involves the reaction of nickel tetracarbonyl with dinitrogen tetroxide:[3]

Ni(CO)4 + 2 N2O4 → Ni(NO3)2 + 2 NO + 4 CO


  • Electrotyping and electroplating nickel
  • Preparation of nickel coordination complexes
  • Make nickel hydrazine nitrate
  • Make nickel catalysts



Like other nitrates, nickel(II) nitrate is oxidizing. It is also irritating to the eyes, skin and, upon inhalation of the dust, respiratory tract. Like all nickel compounds, nickel(II) nitrate is a known allergen and carcinogen.


In closed plastic or glass bottles, away from moisture and combustible materials.


Nickel(II) nitrate can be neutralized by precipitating insoluble nickel, either as oxide or some other insoluble form, then taken to waste disposal centers.


  2. IARC. Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Humans. Geneva: World Health Organization, International Agency for Research on Cancer, 1972-PRESENT. (Multivolume work). Available at:, p. V11 79 (1976)

Relevant Sciencemadness threads