Potassium bicarbonate

Potassium bicarbonate
Names
	IUPAC name potassium hydrogencarbonate
	Other names potassium hydrogencarbonate, potassium acid carbonate
Identifiers
CAS Number	298-14-6 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	4535309
ChEBI	CHEBI:81862 ;
ChEMBL	ChEMBL2106975;
ChemSpider	55053 ;
DrugBank	DB11098;
ECHA InfoCard	100.005.509
EC Number	206-059-0;
E number	E501(ii) (acidity regulators, ...)
KEGG	C18606;
PubChem CID	516893;
UNII	HM5Z15LEBN ;
CompTox Dashboard (EPA)	DTXSID0021177 ;
	InChI InChI=1S/CH2O3.K/c2-1(3)4;/h(H2,2,3,4);/q;+1/p-1 Key: TYJJADVDDVDEDZ-UHFFFAOYSA-M ; InChI=1/CH2O3.K/c2-1(3)4;/h(H2,2,3,4);/q;+1/p-1 Key: TYJJADVDDVDEDZ-REWHXWOFAA;
	SMILES [K+].[O-]C(=O)O;
Properties
Chemical formula	KHCO3
Molar mass	100.115 g/mol
Appearance	white crystals
Odor	odorless
Density	2.17 g/cm3
Melting point	292 °C (558 °F; 565 K) (decomposes)
Solubility in water	22.4 g/100 mL (20 °C)
Solubility	practically insoluble in alcohol
Acidity (pKa)	10.329 6.351 (carbonic acid)
Thermochemistry
Std enthalpy of; formation (ΔfH⦵298)	-963.2 kJ/mol
Pharmacology
ATC code	A12BA04 (WHO)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P280, P302+P352, P304+P340, P305+P351+P338, P312, P332+P313, P362, P403+P233, P405
NFPA 704 (fire diamond)	1 0 0
Flash point	Non-Flammable
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	> 2000 mg/kg (rat, oral)
Safety data sheet (SDS)	MSDS
Related compounds
Other anions	Potassium carbonate
Other cations	Sodium bicarbonate; Ammonium bicarbonate
Related compounds	Potassium bisulfate; Monopotassium phosphate; Dipotassium phosphate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Potassium bicarbonate (IUPAC name: potassium hydrogencarbonate, also known as potassium acid carbonate) is the inorganic compound with the chemical formula KHCO₃. It is a white solid.^[1]

A fire extinguisher containing potassium bicarbonate

^ ^a ^b H. Schultz; G. Bauer; E. Schachl; F. Hagedorn; P. Schmittinger (2005). "Potassium Compounds". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a22_039. ISBN 3-527-30673-0.
^ ^a ^b Goldberg, Robert N.; Kishore, Nand; Lennen, Rebecca M. (2003). "Thermodynamic quantities for the ionization reactions of buffers in water". In David R. Lide (ed.). CRC handbook of chemistry and physics (84th ed.). Boca Raton, FL: CRC Press. pp. 7–13. ISBN 978-0-8493-0595-5. Retrieved 6 March 2011.
^ "Potassium bicarbonate". pubchem.ncbi.nlm.nih.gov.

[Ullmann-1] H. Schultz; G. Bauer; E. Schachl; F. Hagedorn; P. Schmittinger (2005). "Potassium Compounds". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a22_039. ISBN 3-527-30673-0.

[crc84-2] Goldberg, Robert N.; Kishore, Nand; Lennen, Rebecca M. (2003). "Thermodynamic quantities for the ionization reactions of buffers in water". In David R. Lide (ed.). CRC handbook of chemistry and physics (84th ed.). Boca Raton, FL: CRC Press. pp. 7–13. ISBN 978-0-8493-0595-5. Retrieved 6 March 2011.

[3] "Potassium bicarbonate". pubchem.ncbi.nlm.nih.gov.

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