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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:
Molecular Weight:
100.12
Beilstein/REAXYS Number:
4535309
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.55

grade

for inorganic trace analysis

Quality Level

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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This Item
12602603391548134
vibrant-m

431583

Potassium bicarbonate

-
vibrant-m

12602

Potassium bicarbonate

Essential Grade
vibrant-m

60339

Potassium bicarbonate

Premium Grade
vibrant-m

1548134

Potassium bicarbonate

-
grade

for inorganic trace analysis

grade

-

grade

-

grade

pharmaceutical primary standard

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

-

impurities

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

impurities

organic volatile impurities, complies (GC), ≤0.0005% heavy metals (as Pb), ≤0.002% ammonium (NH4)

impurities

insoluble matter, passes filter test

impurities

-

cation traces

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

cation traces

As: ≤1 mg/kg, Ca: ≤50 mg/kg, Fe: ≤10 mg/kg, Na: ≤300 mg/kg, Pb: ≤5 mg/kg

cation traces

Al: ≤5 mg/kg, As: ≤1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤200 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg

cation traces

-

solubility

water: soluble 362 g/L at 25 °C

solubility

water: soluble(lit.)

solubility

H2O: 1 M at 20 °C, clear, colorless

solubility

-

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.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Ga?rtner M, et al.
Journal of the American Chemical Society, 133(7), 2072-2075 (2011)
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)
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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