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Potassium formate

From Wikipedia, the free encyclopedia
Potassium formate[1]
Names
Preferred IUPAC name
Potassium formate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard100.008.799Edit this at Wikidata
UNII
  • 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
  • C(=O)[O-].[K+]
Properties
CHKO2
Molar mass84.115 g·mol−1
AppearanceColorlessdeliquescent crystals
Density1.908 g/cm3
Melting point167.5 °C (333.5 °F; 440.6 K)
Boiling pointDecomposes
32.8 g/100 mL (0 °C)
331 g/100 mL (25°C)
657 g/100 mL (80 °C)
Solubilitysoluble inalcohol
insoluble inether
Basicity (pKb)10.25
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H315,H319,H335
P261,P280,P302+P352,P305+P351+P338
Lethal dose or concentration (LD, LC):
5500 mg/kg (oral, mouse)
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Chemical compound

Potassium formate, HCO2K, HCOOK, or KHCO2, is thepotassiumsalt offormic 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 potentialenvironmentally friendly deicing salt for use on roads.[4][5] It has also been suggested for use in a less corrosiveliquid 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 aqueousdrilling 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. Retrieved2019-03-18.
  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. Retrieved2015-11-18.
  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". Retrieved2022-01-16.
  9. ^"Technical information on "TYFOXIT F15-F50: Ready-to-Use, High-Performance Ultra Low Viscous Secondary Refrigerants for Applications Down to –50 °C""(PDF). Retrieved2022-01-16.
  10. ^Hallman, John (August 1, 1996)."Use of formate-based fluids for drilling and completion".Offshore. Endeavor Business Media. RetrievedNovember 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. RetrievedNovember 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. RetrievedNovember 5, 2024.
H, (pseudo)halogens
chalcogens
pnictogens
B, C group
transition metals
organic


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