Nickel formate

Nickel formate is the nickel salt of formic acid with the chemical formula Ni(HCOO)2.

Nickel formate
2 ·Formiatanion Nickelion
Names
IUPAC name
nickel(2+) diformate
Systematic IUPAC name
nickel formate
Other names
nickel diformate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.020.093
EC Number
  • 222-101-0, 239-946-6
UNII
UN number 3077
  • InChI=1S/2CH2O2.Ni/c2*2-1-3;/h2*1H,(H,2,3);/q;;+2/p-2
    Key: HZPNKQREYVVATQ-UHFFFAOYSA-L
  • C(=O)[O-].C(=O)[O-].[Ni+2]
Properties
C2H2NiO4
Molar mass 148.73[2]
Appearance Green Solid[2][3]
Odor odourless
Density 2.154 g/cm3[2]
Melting point 130–140°C[2]
Boiling point 180–200°C (decomposition)[2]
Slightly soluble in cold water[2]
Solubility insoluble in organic solvents[4]
soluble in acids[3]
Structure
monoclinic
Hazards
GHS labelling:[2]
GHS08: Health hazardGHS07: Exclamation markGHS09: Environmental hazard
Danger
H317, H334, H341, H350i, H360D, H372, H410
P260, P285, P302+P352, P321, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Synthesis and structure

Nickel formate can be obtained by reacting nickel(II) acetate or nickel(II) hydroxide [3] with formic acid.[5]

Ni(OH)2 + 2HCOOH → Ni(HCOO)2 + 2 H2O

Nickel formate can also be synthesized by the reaction of sodium formate with nickel (II) sulphate.[3]

Characteristics

As a dihydrate, nickel formate is a green, odorless, non-flammable solid that is sparingly soluble in water.[2] The compound has a monoclinic crystal structure.[3] The anhydride forms on careful heating at 130–140 °C.[6] When heated in a vacuum to 300 °C, pure nickel is formed:[5]

Ni(HCO2)2(H2O)2 → Ni + 2 CO2 + 2 H2O + H2

Such fine powders are useful as hydrogenation catalysts.[7]

Use

Nickel formate is used in the production of nickel and other nickel compounds such as nickel catalysts.[4]

References
  1. "Nickel formate".
  2. Record of Nickeldiformat in the GESTIS Substance Database of the Institute for Occupational Safety and Health, accessed on 2016-07-23.
  3. NLM Hazardous Substances Data Bank entry for [ ]
  4. Milne, G. W. A. (2005). Gardner's Commercially Important Chemicals Synonyms, Trade Names, and Properties. John Wiley & Sons. p. 738. ISBN 0-471-73661-9.
  5. Kotz, John; Treichel, Paul; Townsend, John (2009). Chemistry and Chemical Reactivity, Enhanced Edition. Cengage Learning. p. 335. ISBN 978-0-495-39029-9.
  6. Falbe, Jürgen; Regitz, Manfred (2014). RÖMPP Lexikon Chemie, 10. Auflage, 1996-1999 Band 4: M - Pk. Georg Thieme Verlag. p. 2238. ISBN 978-3-13-200031-5.
  7. Werner Reutemann and Heinz Kieczka "Formic Acid" in Ullmann's Encyclopedia of Industrial Chemistry 2002, Wiley-VCH, Weinheim. doi:10.1002/14356007.a12_013
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