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Potassium bicarbonate
Names
IUPAC name
potassium hydrogencarbonate
Other names
potassium hydrogencarbonate, potassium acid carbonate
Identifiers
CAS Number
3D model (JSmol )
Beilstein Reference
4535309
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.005.509
EC Number
E number E501(ii ) (acidity regulators, ...)
KEGG
PubChem CID
UNII
CompTox Dashboard (EPA )
InChI=1S/CH2O3.K/c2-1(3 )4;/h(H2,2,3,4);/q;+1/p-1 Y
Key: TYJJADVDDVDEDZ-UHFFFAOYSA-M Y
InChI=1/CH2O3.K/c2-1(3 )4;/h(H2,2,3,4);/q;+1/p-1
Key: TYJJADVDDVDEDZ-REWHXWOFAA
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)[1]
Solubility
practically insoluble in alcohol
Acidity (p K a 10.329[2]
6.351 (carbonic acid)[2]
Thermochemistry
Std enthalpy of (Δf H ⦵ 298 )
-963.2 kJ/mol
Pharmacology
ATC code
A12BA04 (WHO
Hazards[3]
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
Flash point
Non-Flammable
Lethal dose or concentration (LD, LC):
LD 50 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).
Infobox references
Chemical compound
Potassium bicarbonate (IUPAC name : potassium hydrogencarbonate , also known as potassium acid carbonate ) is the inorganic compound with the chemical formula KHCO3 [1]
A fire extinguisher containing potassium bicarbonate
Production and reactivity [ edit ]
It is manufactured by treating an aqueous solution of potassium carbonate with carbon dioxide :[1]
K 2 CO 3 2 2 3
Decomposition of the bicarbonate occurs between 100 and 120 °C (212 and 248 °F):
2 KHCO3 2 CO 3 2 2 O
This reaction is employed to prepare high purity potassium carbonate.
Food and drink [ edit ]
This compound is a source of carbon dioxide for leavening in baking. It can substitute for baking soda (sodium bicarbonate) for those with a low-sodium diet ,[4] baking powders .[5] [6]
As an inexpensive, nontoxic base , it is widely used in diverse application to regulate pH or as a reagent . Examples include as buffering agent in medications, an additive in winemaking .
Potassium bicarbonate is often added to bottled water to improve taste,[7] club soda .
Medical uses and health [ edit ]
Higher potassium intake may prevent development of kidney stone disease .[8] stroke .[9]
Fire extinguishers [ edit ]
Potassium bicarbonate is used as a fire suppression agent ("BC dry chemical") in some dry chemical fire extinguishers , as the principal component of the Purple-K dry chemical, and in some applications of condensed aerosol fire suppression . It is the only dry chemical fire suppression agent recognized by the U.S. National Fire Protection Association for firefighting at airport crash rescue sites. It is about twice as effective in fire suppression as sodium bicarbonate .[10]
Agriculture [ edit ]
Potassium bicarbonate has widespread use in crops, especially for neutralizing acidic soil .[11]
Potassium bicarbonate is an effective fungicide against powdery mildew and apple scab , allowed for use in organic farming .[12] [13] [14] [15]
Potassium bicarbonate is a contact killer for Spanish moss when mixed 1 4 cup per gallon .[16]
History [ edit ]
The word saleratus , from Latin sal æratus meaning "aerated salt", first used in the nineteenth century, refers to both potassium bicarbonate and sodium bicarbonate.[17]
References [ edit ]
^ 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 ISBN 978-0-8493-0595-5 . Retrieved 6 March 2011 .
^ "Potassium bicarbonate" . pubchem.ncbi.nlm.nih.gov .
^ "Potassium Bicarbonate" . encyclopedia.com . Cengage. Retrieved May 29, 2020 .
^ "Home cooking with less salt" . harvard.edu . Harvard University. March 2020. Retrieved May 29, 2020 .
^ Wilkens, Katy G. (15 December 2018). "You Have the (Baking) Power with Low-Sodium Baking Powders" . agingkingcounty.org . Aging & Disability Services for Seattle & King County. Retrieved May 29, 2020 .
^ "Why Your Bottled Water Contains Four Different Ingredients" . Time Magazine. July 24, 2014.
^ He FJ, MacGregor GA (2008). "Beneficial effects of potassium on human health". Physiologia Plantarum 133 (4 ): 725–735. doi :10.1111/j.1399-3054.2007.01033.x . PMID 18724413 .
^ Vinceti M, Filippini T, Orsini N (2016). "Meta-Analysis of Potassium Intake and the Risk of Stroke" . Journal of the American Heart Association 5 10 ): e004210. doi :10.1161/JAHA.116.004210 . PMC 5121516 PMID 27792643 .
^ "Purple-K-Powder" . US Naval Research Laboratory. Archived from the original on 15 February 2009. Retrieved 8 February 2012 .
^ "Potassium Bicarbonate Handbook" (PDF) . Armand Products Company. Archived from the original (PDF) on 2021-01-22. Retrieved 2016-09-06 .
^ "Use of Baking Soda as a Fungicide" . Archived from the original on 2010-05-07. Retrieved 2010-02-14 .
^ "Powdery Mildew - Sustainable Gardening Australia" . Archived from the original on 2016-03-03.
^ "Organic Fruit Production in Michigan" .
^ "Efficacy of Armicarb (potassium bicarbonate) against scab and sooty blotch on apples" (PDF) .
^ "How to Toss Your Spanish Moss" . SkyFrog landscape company. 4 December 2020.
^ "saleratus" . merriam-webster.com . Merriam-Webster. Retrieved May 29, 2020 .
External links [ edit ]
t
e
H, (pseudo)halogens
chalcogens
pnictogens
B, C group
transition metals
organic
t
e
H 2 CO 3
He
Li 2 CO 3 LiHCO3
BeCO3
+BO3
(RO )(R'O)CO +C2 O 4
(NH 4 2 CO 3 ,NH 4 3 +NO3
O +F
Ne
Na 2 CO 3 NaHCO3 ,Na 3 CO 3 2 MgCO3 ,Mg(HCO3 2
Al 2 CO 3 3 SiCO4 ,+SiO4
P +SO4
+Cl
Ar
K 2 CO 3 KHCO3
CaCO3 ,Ca(HCO3 2
Sc Ti V CrCO3 ,Cr 2 CO 3 3 MnCO3
FeCO3
CoCO3 ,Co 2 CO 3 3 NiCO3
Cu 2 CO 3 CuCO3 , Cu 2 CO 3 OH )2 ZnCO3
Ga Ge As Se Br Kr
Rb 2 CO 3 SrCO3
Y Zr Nb Mo Tc Ru Rh PdCO3
Ag 2 CO 3 CdCO3
In Sn Sb Te I Xe
Cs 2 CO 3 CsHCO3
BaCO3
*
Lu 2 CO 3 3 Hf Ta W Re Os Ir Pt Au HgCO3
Tl 2 CO 3 PbCO3
(BiO)2 CO 3
Po(CO 3 2
At Rn
Fr RaCO3
**
Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
*
La 2 CO 3 3 Ce 2 CO 3 3 Pr 2 CO 3 3 Nd 2 CO 3 3 Pm Sm 2 CO 3 3 EuCO3 ,Eu 2 CO 3 3 Gd 2 CO 3 3 Tb 2 CO 3 3 Dy 2 CO 3 3 Ho 2 CO 3 3 Er 2 CO 3 3 Tm 2 CO 3 3 Yb 2 CO 3 3
**
Ac Th(CO 3 2
Pa UO 2 CO 3 Np Pu Am Cm Bk Cf Es Fm Md No
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=Potassium_bicarbonate&oldid=1211877182 " C a t e g o r i e s : ● P o t a s s i u m c o m p o u n d s ● A c i d s a l t s ● F i r e s u p p r e s s i o n a g e n t s H i d d e n c a t e g o r i e s : ● E C H A I n f o C a r d I D f r o m W i k i d a t a ● E n u m b e r f r o m W i k i d a t a ● C h e m b o x h a v i n g G H S d a t a ● A r t i c l e s c o n t a i n i n g u n v e r i f i e d c h e m i c a l i n f o b o x e s ● A r t i c l e s w i t h s h o r t d e s c r i p t i o n ● S h o r t d e s c r i p t i o n m a t c h e s W i k i d a t a ● W e b a r c h i v e t e m p l a t e w a y b a c k l i n k s ● W i k i p e d i a a r t i c l e s i n c o r p o r a t i n g a c i t a t i o n f r o m t h e N e w I n t e r n a t i o n a l E n c y c l o p e d i a ● A r t i c l e s w i t h G N D i d e n t i f i e r s
● T h i s p a g e w a s l a s t e d i t e d o n 4 M a r c h 2 0 2 4 , a t 2 3 : 5 0 ( U T C ) . ● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n . ● P r i v a c y p o l i c y ● A b o u t W i k i p e d i a ● D i s c l a i m e r s ● C o n t a c t W i k i p e d i a ● C o d e o f C o n d u c t ● D e v e l o p e r s ● S t a t i s t i c s ● C o o k i e s t a t e m e n t ● M o b i l e v i e w
