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Merck
CN

243558

Potassium carbonate sesquihydrate

99%, ACS reagent

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About This Item

Linear Formula:
K2CO3 · 1.5H2O
CAS Number:
6381-79-9
Molecular Weight:
165.23
MDL number:
MFCD18909717
UNSPSC Code:
12352302
PubChem Substance ID:
24854510
EC Number:
209-529-3
NACRES:
NA.21
Assay:
98.5-101.0% (ACS specification), 99%
Grade:
ACS reagent
Form:
crystals or granules, (Powder or Crystals or Granules or Chunks)

Key Documents

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InChI key

WWVGGBSGYNQKCY-UHFFFAOYSA-J

SMILES string

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

grade

ACS reagent

assay

98.5-101.0% (ACS specification), 99%

form

crystals or granules, (Powder or Crystals or Granules or Chunks)

impurities

≤0.001% N compounds, ≤0.004% S compounds (as SO42-), ≤0.005% silica, ≤0.01% NH4OH pptd., ≤0.01% insolubles

loss

14.0-16.5% loss on heating

anion traces

chloride (Cl-): ≤0.003%, phosphate (PO43-): ≤0.001%

cation traces

Ca: ≤0.005%, Fe: ≤5 ppm, Mg: ≤0.002%, Na: ≤0.02%, heavy metals: ≤5 ppm (by ICP-OES)

Quality Level

200

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General description

Crystals of potassium carbonate sesquihydrate belong to the monoclinic crystal system and space group C2/c.

Application

Potassium carbonate sesquihydrate can be used as a sorbent for the removal of CO2 from flue gas in precombustion process. It may be employed as a base in the cross-coupling of benzene boronic acid with benzoyl chloride in the presence of deposited Pd catalysts to give benzophenone.

It may also be used as one of the reaction components in the preparation of:
  • 1,2,3-triethylimidazolium
  • 1,2,3-triethyl-4-methylimidazolium
  • 2-ethyl-1,3,4-trimethylimidazolium

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

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
MKCZ5358
MKCV8283
MKCT1946
MKCR4105
MKCN4115

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Ab initio thermodynamic study of the CO2 capture properties of potassium carbonate sesquihydrate, K2CO3? 1.5H2O.
Duan Y, et al.
The Journal of Physical Chemistry C, 116(27), 14461-14470 (2012)
Study of the performance of imidazolium-derived cations as structure directing agents in the synthesis of zeolites in fluoride media.
Variani YM, et al.
New. J. Chem., 40(9), 7968-7977 (2016)
Synthesis, structure, and optical activity of HPM-1, a pure silica chiral zeolite.
Rojas A, et al.
Journal of the American Chemical Society, 135(32), 11975-11984 (2013)
Synthesis of aromatic ketones by Suzuki-Miyaura cross-coupling of acyl chlorides with boronic acids mediated by palladium catalysts deposited over donor-functionalized silica gel.
Semler M and Stepnicka P.
Catalysis Today, 243, 128-133 (2015)

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