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Merck
CN

431583

Potassium bicarbonate

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

Synonym(s):

Potassium hydrogen carbonate

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About This Item

Linear Formula:
KHCO3
CAS Number:
298-14-6
Molecular Weight:
100.12
UNSPSC Code:
12352300
NACRES:
NA.55
PubChem Substance ID:
329756314
EC Number:
206-059-0
Beilstein/REAXYS Number:
4535309
MDL number:
MFCD00011402

Key Documents

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Product Name

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

InChI key

TYJJADVDDVDEDZ-UHFFFAOYSA-M

InChI

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

SMILES string

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

description

for inorganic trace analysis

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

Quality Level

100

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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.

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.

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ5336
MKCX1015
MKCT8967
MKCS4764
MKCL7900

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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)
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)
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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