Potassium formate

Potassium formate[1]

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Names
Preferred IUPAC name

Potassium formate

Identifiers

CAS Number

* 590-29-4 Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 11054 N

ECHA InfoCard | 100.008.799

PubChem CID

* 11539

UNII |

* 25I90B156L Y

CompTox Dashboard (EPA)

* DTXSID6029626

InChI

* InChI=1S/CH2O2.K/c2-1-3;/h1H,(H,2,3);/q;+1/p-1 N

Key: WFIZEGIEIOHZCP-UHFFFAOYSA-M N

* InChI=1/CH2O2.K/c2-1-3;/h1H,(H,2,3);/q;+1/p-1

Key: WFIZEGIEIOHZCP-REWHXWOFAK

SMILES

* C(=O)[O-].[K+]

Properties

Chemical formula

| CHKO2
Molar mass | 84.115 g·mol−1
Appearance  | Colorless deliquescent crystals
Density | 1.908 g/cm3
Melting point | 167.5 °C (333.5 °F; 440.6 K)
Boiling point | Decomposes

Solubility in water

| 32.8 g/100 mL (0 °C)
331 g/100 mL (25°C)
657 g/100 mL (80 °C)
Solubility | soluble in alcohol
insoluble in ether
Basicity (pKb)  | 10.25
Hazards
GHS labelling:

Pictograms

Signal word

| Warning

Hazard statements

| H315, H319, H335

Precautionary statements

| P261, P280, P302+P352, P305+P351+P338
Lethal dose or concentration (LD, LC):

LD50 (median dose)

| 5500 mg/kg (oral, mouse)

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

N verify (what is YN ?)

Infobox references

Chemical compound

Potassium formate, HCO2K, HCOOK, or KHCO2, is the potassium salt of formic acid. This strongly hygroscopic white solid[2] is an intermediate in the formate potash process for the production of potassium.[3] Potassium formate has also been studied as a potential environmentally friendly deicing salt for use on roads.[4][5] It has also been suggested for use in a less corrosive liquid desiccant.[6] A 52% solution of potassium formate has a freezing point of −60 °C (−76 °F).[7] Potassium formate brines are sometimes used for heat transfer, despite being much more corrosive than many other liquid coolants, especially to zinc and aluminum but even to many steels,[8] though some formulations are compatible with aluminum and steels.[9]

Since 1995, potassium formate has been increasingly used in aqueous drilling fluids to increase density, stabilize the hole, and improve drilling performance.[10][11][12]

## References

[edit]

1. ^ Olsen, J C (editor), Van Nostrand's Chemical Annual, Chapman and Hall, London, 1934
2. ^ "MSDS - 294454". www.sigmaaldrich.com. Retrieved 2019-03-18.
3. ^ Concise Encyclopedia Chemistry, Mary Eagleson (1994), page 888. ISBN 978-3-11-011451-5
4. ^ "Finnish Environment Institute > Main publications on the effect of de-icing chemicals on ground water". www.syke.fi. Retrieved 2015-11-18.
5. ^ Pasi P. Hellstén; Jani M. Salminen; Kirsten S. Jørgensen & Taina H. Nystén (2005). "Use of potassium formate in road winter deicing can reduce groundwater deterioration". Environ. Sci. Technol. 39 (13): 5095–5100\. Bibcode:2005EnST...39.5095H. doi:10.1021/es0482738. PMID 16053115.
6. ^ "Module 71: Liquid desiccants for dehumidification in building air conditioning systems".
7. ^ "Potassium Formate for Runway Deicing".
8. ^ "Brines and antifreeze". Retrieved 2022-01-16.
9. ^ "Technical information on "TYFOXIT F15-F50: Ready-to-Use, High-Performance Ultra Low Viscous Secondary Refrigerants for Applications Down to –50 °C"" (PDF). Retrieved 2022-01-16.
10. ^ Hallman, John (August 1, 1996). "Use of formate-based fluids for drilling and completion". Offshore. Endeavor Business Media. Retrieved November 5, 2024.
11. ^ van Oort, Eric (April 2017). "Shale Stabilization by High-Salinity Formate Drilling Fluids" (PDF). www.aade.org. American Association of Drilling Engineers. Retrieved November 5, 2024.
12. ^ Kazemihokmabad, Parsa; Khamehchi, Ehsan; Kalatehno, Javad; Ebadi, Reza (June 1, 2024). "A comparative study of brine solutions as completion fluids for oil and gas fields". Scientific Reports. 14. Retrieved November 5, 2024.

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Potassium compounds

H, (pseudo)halogens|

* KF
* KHF2
* KH
* KCl
* KClO
* KClO3
* KClO4
* KBr
* KBrO3
* KI
* KIO3
* KIO4
* KAt
* KCN
* KCNO
* KOCN
* KSCN

chalcogens|

* K2O
* KOH
* K2O2
* KO2
* KO3
* K2S
* KHS
* K2SO3
* KHSO3
* K2SO4
* KHSO4
* KHSO5
* K2S2O3
* K2S2O5
* K2S2O7
* K2S2O8
* K2Se
* K2SeO3
* K2SeO4
* K2Te
* K2TeO3
* K2TeO4
* K2Po

pnictogens|

* K3N
* KNH2
* KN3
* KNO2
* KNO3
* K3P
* KH2PO3
* K3PO4
* K2HPO4
* KH2PO4
* KPF6
* KAsO2
* K3AsO4
* K2HAsO4
* KH2AsO4

B, C group|

* B4K2O7
* K2CO3
* KHCO3
* K2SiO3
* K2SiF6
* K2Al2O4
* K2Al2B2O7

transition metals|

* K2PtCl4
* K2Pt(CN)4
* K2TiF6
* K2PtCl6
* K2ReCl6
* K
2ReF

* KAsF6
* K2ReBr6
* K
2ReI

* K2ZrF6
* K4Fe(CN)6
* K3Fe(CN)6
* K3Fe(C2O4)3
* K2FeO4
* K2MnO4
* KMnO4
* K3CrO4
* K2CrO4
* K3CrO8
* KCrO3Cl
* K2Cr2O7
* K2Cr3O10
* K2Cr4O13
* K4Mo2Cl8

organic|

* KHCO2
* KCH3CO2
* KCF3CO2
* K2C2O4
* KHC2O4
* KC12H23O2
* KC18H35O2
* C3H2K2O4
* C4H6KO4
* C5H7KO4

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*[CID]: Compound ID
*[EPA]: U.S. Environmental Protection Agency
*[H315]: H315: Causes skin irritation
*[H319]: H319: Causes serious eye irritation
*[H335]: H335: May cause respiratory irritation
*[P261]: P261: Avoid breathing dust/fume/gas/mist/vapours/spray.
*[P280]: P280: Wear protective gloves/protective clothing/eye protection/face protection.
*[P302+P352]: P302+P352: IF ON SKIN: Wash with soap and water.
*[P305+P351+P338]: P305+P351+P338: IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
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