Nickel formate

Names
IUPAC name

nickel(2+) diformate

Systematic IUPAC name

nickel formate

Other names

nickel diformate

Identifiers

CAS Number

* 3349-06-2[1]
* 15694-70-9 (Dihydrate)
* 15843-02-4

3D model (JSmol)

* Interactive image

ChemSpider |

* 25597 Y
* 35294216

EC Number |

* 222-101-0, 239-946-6

PubChem CID

* 27506

UNII |

* Y4YT27N8QN

UN number | 3077

InChI

* InChI=1S/2CH2O2.Ni/c2*2-1-3;/h2*1H,(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[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]

Solubility in water

| Slightly soluble in cold water[2]
Solubility | insoluble in organic solvents[4]
soluble in acids[3]
Structure

Crystal structure

| monoclinic
Hazards
GHS pictograms |
GHS Signal word | Danger

GHS hazard statements

| H317, H334, H341, H350i, H360D, H372, H410

GHS precautionary statements

| P260, P285, P302+352, 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.

## Contents

* 1 Synthesis and structure
* 2 Characteristics
* 3 Use
* 4 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(HCO

2(H
2O)
2 → Ni + 2 CO
2 \+ 2 H
2O + H

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". https://pubchem.ncbi.nlm.nih.gov/compound/Nickel-formate#section=Molecular-Formula.
2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Record of Nickeldiformat in the GESTIS Substance Database of the Institute for Occupational Safety and Health, accessed on 2016-07-23.
3. ↑ 3.0 3.1 3.2 3.3 3.4 Template:HSDB
4. ↑ 4.0 4.1 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. https://books.google.com/books?id=oWdc2qcb3QsC.
5. ↑ 5.0 5.1 Kotz, John; Treichel, Paul; Townsend, John (2009). Chemistry and Chemical Reactivity, Enhanced Edition. Cengage Learning. pp. 335. ISBN 978-0-495-39029-9. https://books.google.com/books?id=IBESYmQcb0sC.
6. ↑ Falbe, Jürgen; Regitz, Manfred (2014). RÖMPP Lexikon Chemie, 10. Auflage, 1996-1999 Band 4: M - Pk. Georg Thieme Verlag. pp. 2238. ISBN 978-3-13-200031-5. https://books.google.com/books?id=TD3OAwAAQBAJ.
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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*[CID]: Compound ID
*[H317]: May cause an allergic skin reaction
*[H334]: May cause allergy or asthma symptoms of breathing difficulties if inhaled
*[H341]: Suspected of causing genetic defects
*[H350i]: May cause cancer by inhalation
*[H360D]: May damage the unborn child
*[H372]: Causes damage to organs through prolonged or repeated exposure
*[H410]: Very toxic to aquatic life with long lasting effects
*[P260]: Do not breathe dust/fume/gas/mist/vapours/spray
*[P285]: In case of inadequate ventilation wear respiratory protection
*[P302+352]: IF ON SKIN: Wash with soap and water
*[P321]: Specific treatment (see … on this label)
*[P405]: Store locked up
*[P501]: Dispose of contents/container to …