Nickel(II) nitrite

Nickel(II) nitrite

Names
IUPAC name Nickel(II) nitrite
Identifiers
CAS Number	17861-62-0
Jmol 3D model	Interactive image
PubChem	20831815
RTECS number	RA1080000
InChI InChI=1S/2HNO2.Ni/c2*2-1-3;/h2*(H,2,3);/q;;+2/p-2 Key: ZVHHIDVFSYXCEW-UHFFFAOYSA-L
SMILES N(=O)[O-].N(=O)[O-].[Ni+2]
Properties
Chemical formula	Ni(NO2)2
Molar mass	150.73 g/mol
Appearance	blue-green crystals
Density	8.90 g/cm^3 (20 °C)
Solubility in water	very soluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Nickel(II) nitrite is an inorganic compound with the chemical formula Ni(NO₂)₂ ^[1] Anhydrous nickel nitrite was first discovered by Cyril Clifford Addison on 1961. He allowed gaseous nickel tetracarbonyl to react with dinitrogen tetroxide, yielding a green smoke. Nickel nitrite was the second transition element anhydrous nitrite discovered after silver nitrite.^[2]Nickel nitrite decomposes when heated to 220°, however it can be heated up to 260° in argon. The nitrite is covalently bonded to nickel, and the material is slightly volatile.^[3] The infrared spectrum of the solid has absorption bands at 1575, 1388, 1333, 1240, 1080, and 830 cm⁻¹.^[3] liquid dinitrogentetroxide oxidises nickel nitrite to nickel nitrate.^[3]

References

1. University of Akron Chemical Database
2. Lord Lewis of Newnham; Johnson, B. F. G. (1 November 1997). "Cyril Clifford Addison. 28 November 1913--1 April 1994.: Elected F.R.S. 1970" (PDF). Biographical Memoirs of Fellows of the Royal Society 43 (0): 3–12. doi:10.1098/rsbm.1997.0001.
3. Addison, C. C.; Johnson, B. F. G; Logan, N.; Wojcicki, A. (August 1961). "Transition-metal Nitrites". Proceedings of the Chemical Society (August): 306–307. doi:10.1039/PS9610000273.