Nickel formate

Nickel formate
Names
	IUPAC name nickel(2+) diformate
	Systematic IUPAC name nickel formate
	Other names nickel diformate
Identifiers
CAS Number	3349-06-2; 15694-70-9 (Dihydrate); 15843-02-4;
3D model (JSmol)	Interactive image;
ChemSpider	25597 ; 35294216;
ECHA InfoCard	100.020.093
EC Number	222-101-0, 239-946-6;
PubChem CID	27506;
UNII	Y4YT27N8QN;
UN number	3077
CompTox Dashboard (EPA)	DTXSID40890523 ;
	InChI InChI=1S/2CH2O2.Ni/c22-1-3;/h21H,(H,2,3);/q;;+2/p-2 Key: HZPNKQREYVVATQ-UHFFFAOYSA-L;
	SMILES C(=O)[O-].C(=O)[O-].[Ni+2];
Properties
Chemical formula	C2H2NiO4
Molar mass	148.73
Appearance	Green Solid
Odor	odourless
Density	2.154 g/cm3
Melting point	130–140°C
Boiling point	180–200°C (decomposition)
Solubility in water	Slightly soluble in cold water
Solubility	insoluble in organic solvents ; soluble in acids
Structure
Crystal structure	monoclinic
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H317, H334, H341, H350i, H360D, H372, H410
Precautionary statements	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

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

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

^ "Nickel formate".
^ ^a ^b ^c ^d ^e ^f ^g ^h Record of Nickeldiformat in the GESTIS Substance Database of the Institute for Occupational Safety and Health, accessed on 2016-07-23.
^ ^a ^b ^c ^d ^e NLM Hazardous Substances Data Bank entry for [ ]
^ ^a ^b 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.
^ ^a ^b Kotz, John; Treichel, Paul; Townsend, John (2009). Chemistry and Chemical Reactivity, Enhanced Edition. Cengage Learning. p. 335. ISBN 978-0-495-39029-9.
^ 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.
^ Werner Reutemann and Heinz Kieczka "Formic Acid" in Ullmann's Encyclopedia of Industrial Chemistry 2002, Wiley-VCH, Weinheim. doi:10.1002/14356007.a12_013

[1] "Nickel formate".

[GESTIS-2] ^ ^a ^b ^c ^d ^e ^f ^g ^h Record of Nickeldiformat in the GESTIS Substance Database of the Institute for Occupational Safety and Health, accessed on 2016-07-23.

[HSDB-3] NLM Hazardous Substances Data Bank entry for [ ]

[G._W._A._Milne-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.

[John_Kotz,_Paul_Treichel,_John_Townsend-5] Kotz, John; Treichel, Paul; Townsend, John (2009). Chemistry and Chemical Reactivity, Enhanced Edition. Cengage Learning. p. 335. ISBN 978-0-495-39029-9.

[Jürgen_Falbe,_Manfred_Regitz-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.

[Ullmann_2009-7] 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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