Potassium formate[1] Names Preferred IUPAC name Potassium formate Identifiers

• 590-29-4 Y

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•  N

ECHA InfoCard 100.008.799 PubChem CID UNII

• 25I90B156L Y

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• InChI=1S/CH2O2.K/c2-1-3;/h1H,(H,2,3);/q;+1/p-1 NKey: WFIZEGIEIOHZCP-UHFFFAOYSA-M N
• InChI=1/CH2O2.K/c2-1-3;/h1H,(H,2,3);/q;+1/p-1Key: WFIZEGIEIOHZCP-REWHXWOFAK

• C(=O)[O-].[K+]

Properties 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 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: Warning H315, H319, H335 P261, P280, P302+P352, P305+P351+P338 Lethal dose or concentration (LD, LC): LD50 (median dose) 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   (what is YN ?) 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]

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

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