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431583

Sigma-Aldrich

Potassium bicarbonate

≥99.95% trace metals basis, 99.7-100.5% dry basis

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Synonym(s):
Potassium hydrogen carbonate
Linear Formula:
KHCO3
CAS Number:
298-14-6
Molecular Weight:
100.12
Beilstein:
4535309
EC Number:
206-059-0
MDL number:
MFCD00011402
UNSPSC Code:
12352300
PubChem Substance ID:
329756314
NACRES:
NA.55

grade

for inorganic trace analysis

Quality Level

100

Assay

≥99.95% trace metals basis
99.7-100.5% dry basis

form

solid

impurities

≤0.003% S compounds
≤0.01% insolubles
<500 ppm total metallic impurities (excluding Na)

solubility

water: soluble 362 g/L at 25 °C

anion traces

chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤5 ppm

cation traces

NH4+: ≤5 ppm
Na: ≤0.03%
heavy metals: ≤5 ppm

SMILES string

[K+].OC([O-])=O

InChI

1S/CH2O3.K/c2-1(3)4;/h(H2,2,3,4);/q;+1/p-1

InChI key

TYJJADVDDVDEDZ-UHFFFAOYSA-M

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General description

Potassium bicarbonate is water soluble alkaline potassium salt with monoclinic crystalline structure. It is a raw material for the synthesis of many potassium compounds. It is a better coolant than sodium bicarbonate in the aerosol fire extinguishing apparatus. It shows potential as an antifungal agent.

Application

Potassium bicarbonate may be used as a catalyst in the synthesis of dimethyl carbonate (DMC) by reacting with propylene oxide (PO), supercritical CO2 (SC CO2) and methanol. It may also be used as a nucleophile for synthesizing branched allylic alcohols in the presence of iridium catalyst.

Features and Benefits

Meets A.C.S. reagent specifications.

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Enantio-and regioselective iridium-catalyzed allylic hydroxylation.
Ga?rtner M, et al.
Journal of the American Chemical Society, 133(7), 2072-2075 (2011)
Cooling and filter layer of aerosol fire extinguishing agent.
3Jiang XN, et al.
Fire Science and Technology, 6, 032-032 (2013)
In vitro antifungal effects of potassium bicarbonate on Trichoderma sp. and Sclerotinia sclerotiorum.
Ordo?ez-Valencia C, et al.
Mycoscience, 50(5), 380-387 (2009)
Direct synthesis of dimethyl carbonate and propylene glycol using potassium bicarbonate as catalyst in supercritical CO2.
Wen Y, et al.
Polish Journal of Chemical Technology, 17(1), 62-65 (2015)
Eagleson M.
Concise Encyclopedia Chemistry, 888-888 (1994)
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