potassium formate

{{chembox

| Verifiedfields = changed

| Watchedfields = changed

| verifiedrevid = 419113064

| Name =

| Reference = Olsen, J C (editor), Van Nostrand's Chemical Annual, Chapman and Hall, London, 1934

| ImageFile = Potassium formate.png

| ImageFileL1 = Formate-3D-balls.png

| ImageFileR1 = Potassium-3D.png

| ImageSize = 120px

| PIN = Potassium formate

| OtherNames =

| Section1 = {{Chembox Identifiers

| CASNo_Ref = {{cascite|correct|CAS}}

| CASNo = 590-29-4

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = 25I90B156L

| PubChem = 11539

| ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}}

| ChemSpiderID = 11054

| SMILES = C(=O)[O-].[K+]

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

| InChIKey = WFIZEGIEIOHZCP-REWHXWOFAK

| StdInChI_Ref = {{stdinchicite|changed|chemspider}}

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

| StdInChIKey_Ref = {{stdinchicite|changed|chemspider}}

| StdInChIKey = WFIZEGIEIOHZCP-UHFFFAOYSA-M

}}

| Section2 = {{Chembox Properties

| K=1|H=1|C=1|O=2

| Appearance = Colorless deliquescent crystals

| Density = 1.908 g/cm³

| MeltingPtC = 167.5

| BoilingPt = Decomposes

| Solubility = 32.8 g/100 mL (0 °C)
331 g/100 mL (25°C)
657 g/100 mL (80 °C)

| SolubleOther = soluble in alcohol
insoluble in ether

| pKb = 10.25

}}

| Section3 = {{Chembox Hazards

| GHSPictograms = {{GHS exclamation mark}}

| GHSSignalWord = Warning

| HPhrases = {{H-phrases|335|319|315}}

| PPhrases = {{P-phrases|261|302+352|280|305+351+338}}

| LD50 = 5500 mg/kg (oral, mouse)

}}

| Section4 =

| Section5 =

| Section6 =

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Potassium formate, HCO₂K, HCOOK, or KHCO₂, is the potassium salt of formic acid. This strongly hygroscopic white solid{{Cite web|url=https://www.sigmaaldrich.com/MSDS/MSDS/DisplayMSDSPage.do?country=US&language=en&productNumber=294454&brand=ALDRICH&PageToGoToURL=https://www.sigmaaldrich.com/catalog/product/aldrich/294454?lang=en|title=MSDS - 294454|website=www.sigmaaldrich.com|access-date=2019-03-18}} is an intermediate in the formate potash process for the production of potassium.Concise Encyclopedia Chemistry, Mary Eagleson (1994), page 888. {{ISBN|978-3-11-011451-5}} Potassium formate has also been studied as a potential environmentally friendly deicing salt for use on roads.{{Cite web|title = Finnish Environment Institute > Main publications on the effect of de-icing chemicals on ground water|url = http://www.syke.fi/en-US/Research__Development/Research_and_development_projects/Projects/Migration_of_alternative_deicing_chemicals_in_aquifers_MIDAS/Main_publications_on_the_effect_of_deicing_chemicals_on_ground_water|website = www.syke.fi|access-date = 2015-11-18}}{{cite journal |author1=Pasi P. Hellstén |author2=Jani M. Salminen |author3=Kirsten S. Jørgensen |author4=Taina H. Nystén |name-list-style=amp | journal = Environ. Sci. Technol. | year = 2005 | volume = 39 | issue = 13 | pages = 5095–5100 | doi = 10.1021/es0482738 | pmid = 16053115 | title = Use of potassium formate in road winter deicing can reduce groundwater deterioration|bibcode=2005EnST...39.5095H }} It has also been suggested for use in a less corrosive liquid desiccant.{{Cite web|url=https://www.cibsejournal.com/cpd/modules/2014-12/|title = Module 71: Liquid desiccants for dehumidification in building air conditioning systems}} A 52% solution of potassium formate has a freezing point of {{convert|-60|C}}.{{Cite web|url=https://aerospace.basf.com/potassium-formate-for-runway-deicing.html|title = Potassium Formate for Runway Deicing}} 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,{{Cite web

|title=Brines and antifreeze

|url=https://www.hydratech.co.uk/Technical/Brine-as-a-heat-transfer-fluid-and-antifreeze/0/33

|accessdate=2022-01-16

}}

though some formulations are compatible with aluminum and steels.{{Cite web

|title=Technical information on "TYFOXIT F15-F50: Ready-to-Use, High-Performance Ultra Low Viscous Secondary Refrigerants for Applications Down to –50 °C"

|url=https://tyfo.de/downloads/TYFOXIT-F15-F50_en_TI.pdf

|accessdate=2022-01-16

}}

Since 1995, potassium formate has been increasingly used in aqueous Drilling fluids to increase density, stabilize the hole, and improve drilling performance.{{cite magazine |last=Hallman |first=John |date=August 1, 1996 |title=Use of formate-based fluids for drilling and completion |url=https://www.offshore-mag.com/business-briefs/equipment-engineering/article/16759488/use-of-formate-based-fluids-for-drilling-and-completion |magazine=Offshore |location= |publisher=Endeavor Business Media |access-date=November 5, 2024 }}{{cite web |url=https://www.aade.org/application/files/6915/7132/1733/AADE-17-NTCE-111_-_van_Oort.pdf |title=Shale Stabilization by High-Salinity Formate Drilling Fluids |last=van Oort |first=Eric |date=April 2017 |website=www.aade.org |publisher=American Association of Drilling Engineers |access-date=November 5, 2024 |quote=}}{{cite journal |last1=Kazemihokmabad |first1=Parsa |last2=Khamehchi |first2=Ehsan|last3=Kalatehno |first3=Javad|last4=Ebadi |first4=Reza |date=June 1, 2024 |title=A comparative study of brine solutions as completion fluids for oil and gas fields|url=https://www.nature.com/articles/s41598-024-63303-5 |journal=Scientific Reports |volume=14 |issue= |pages= |doi= |access-date=November 5, 2024 }}