Cobalt(II) formate

Cobalt(II) Formate  Names

IUPAC name

Cobalt(II) formate

Identifiers

CAS Number

* 544-18-3 Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 10532

ECHA InfoCard | 100.008.059
EC Number |

* 208-862-4

PubChem CID

* 10998

UNII |

* 3ADO6Y1TNZ Y

CompTox Dashboard (EPA)

* DTXSID1060267

InChI

* InChI=1S/2CH2O2.Co/c2*2-1-3;/h2*1H,(H,2,3);/q;;+2/p-2

Key: PFQLIVQUKOIJJD-UHFFFAOYSA-L

* InChI=1/2CH2O2.Co/c2*2-1-3;/h2*1H,(H,2,3);/q;;+2/p-2

Key: PFQLIVQUKOIJJD-NUQVWONBAE

SMILES

* C(=O)[O-].C(=O)[O-].[Co+2]

Properties

Chemical formula

| Co(HCO2)2
Molar mass | 148.97 g/mol
Appearance  | red crystalline
Density | 2.13 g/cm3 (20 °C)
Melting point | 175 °C (347 °F; 448 K) (decomposes)

Solubility in water

| 5.03 g/100 mL (20 °C)[1]
Solubility | insoluble in alcohol

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Chemical compound

Cobalt(II) formate is an inorganic compound with the chemical formula Co(HCO2)2 (or Co(HCOO)2).[2] It typically exists as a dihydrate (Co(HCO2)2•2H2O) in which it forms a 3D metal–organic framework structure and is known as Co-MOF.[3]

Cobalt(II) formate is a red crystalline solid and is soluble in water. It can be very hazardous to the environment. Cobalt formate is used to make catalysts for chemical manufacture[4] and for isolation of isotopically enriched hydrogen.

## Synthesis

[edit]

It can be prepared by adding Co(NO3)2 and phytic acid to a mixture of water, methanol, and dimethyl formamide.

The solution will have a clear appearance until it is heated 100 °C for about 24 hours. At this point it, will appear as a red crystalline structure.[3]

## Application

[edit]

This MOF has recently been used to isolate hydrogen isotopes. This is done via an oxygen evolution reaction using Co(HCOO)2 as a catalyst.[3]

## References

[edit]

1. ^ Haynes, W.M., ed. (2017). CRC Handbook of Chemistry and Physics (97th ed.). CRC Press, Taylor & Francis Group. pp. 4–58\. ISBN 978-1-4987-5429-3.
2. ^ University of Akron Chemical Database Archived 2012-12-12 at archive.today
3. ^ a b c Ravi, Athira; Nasani, Rajendar; Das, Samar K. (March 2022). "Cobalt Formate, a Functional MOF: Electrocatalytic Water Oxidation". Journal of Molecular and Engineering Materials. 10 (1n02). Bibcode:2022JMEM...1040002R. doi:10.1142/S2251237322400020. ISSN 2251-2373. S2CID 248955759.
4. ^ "COBALTOUS FORMATE | CAMEO Chemicals | NOAA". cameochemicals.noaa.gov. Retrieved 2023-12-12.

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Cobalt compounds

Cobalt(I)|

* HCo(CO)4

Cobalt(II)|

* CoBr2
* Co(CN)2
* CoCO3
* CoC2O4
* CoCl2
* Co(ClO3)2
* Co(ClO4)2
* CoF2
* Co(HCO2)2
* CoI2
* Co(NO3)2
* Co3(PO4)2
* Co(OAc)2
* CoGeO3
* CoO
* Co(OH)2
* CoS
* Co(OCN)2
* Co(SCN)2
* CoSO4
* CoSe
* Co3P2
* CoH2
* Co(C3H6O3)2
* C
24H
48CoO

* C
36H
70CoO

Cobalt(0,III)|

* CoSi
* CoGe

Cobalt(II,III)|

* Co3O4

Cobalt(III)|

* CoAs
* CoCl3
* Co(NO3)3
* Co2O3
* CoF3
* Co(OH)3
* LiCoO2

Cobalt(III,IV)|

* NaxCoO2

Cobalt(IV)|

* CoF4
* Cs2CoF6
* CoC28H44

Cobalt(V)|

* Na3CoO4

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