Potassium formate
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Names | |||
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Preferred IUPAC name Potassium formate | |||
Identifiers | |||
CAS Number |
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3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.008.799 | ||
PubChem CID |
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UNII |
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CompTox Dashboard (EPA) |
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InChI
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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: | |||
Warning | |||
H315, H319, H335 | |||
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 |
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]
References
- ^ Olsen, J C (editor), Van Nostrand's Chemical Annual, Chapman and Hall, London, 1934
- ^ "MSDS - 294454". www.sigmaaldrich.com. Retrieved 2019-03-18.
- ^ Concise Encyclopedia Chemistry, Mary Eagleson (1994), page 888. ISBN 978-3-11-011451-5
- ^ "Finnish Environment Institute > Main publications on the effect of de-icing chemicals on ground water". www.syke.fi. Retrieved 2015-11-18.
- ^ 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.
- ^ "Module 71: Liquid desiccants for dehumidification in building air conditioning systems".
- ^ "Potassium Formate for Runway Deicing".
- ^ "Brines and antifreeze". Retrieved 2022-01-16.
- ^ "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.
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- K3N
- KNH2
- KN3
- KNO2
- KNO3
- K3P
- KH2PO3
- K3PO4
- K2HPO4
- KH2PO4
- KPF6
- KAsO2
- K3AsO4
- K2HAsO4
- KH2AsO4
- B4K2O7
- K2CO3
- KHCO3
- K2SiO3
- K2SiF6
- K2Al2O4
- K2Al2B2O7
- K2PtCl4
- K2Pt(CN)4
- K2TiF6
- K2PtCl6
- K2ReCl6
- K
2ReF
6 - KAsF6
- K2ReBr6
- K
2ReI
6 - K2ZrF6
- K4Fe(CN)6
- K3Fe(CN)6
- K3Fe(C2O4)3
- K2FeO4
- K2MnO4
- KMnO4
- K3CrO4
- K2CrO4
- K3CrO8
- KCrO3Cl
- K2Cr2O7
- K2Cr3O10
- K2Cr4O13
- K4Mo2Cl8
- KHCO2
- KCH3CO2
- KCF3CO2
- K2C2O4
- KHC2O4
- KC12H23O2
- KC18H35O2
- C3H2K2O4
- C4H6KO4
- C5H7KO4
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