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367877

Sigma-Aldrich

Potassium carbonate

99.995% trace metals basis

Synonym(s):

Dipotassium carbonate

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About This Item

Linear Formula:
K2CO3
CAS Number:
584-08-7
Molecular Weight:
138.21
Beilstein:
4267587
EC Number:
209-529-3
MDL number:
MFCD00011382
UNSPSC Code:
12352302
PubChem Substance ID:
24862856
NACRES:
NA.23

Quality Level

200

Assay

99.995% trace metals basis

form

powder and chunks

impurities

≤55.0 ppm Trace Metal Analysis

mp

891 °C (lit.)

solubility

H2O: soluble 138 g/L at 20 °C (completely)

SMILES string

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

InChI

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

InChI key

BWHMMNNQKKPAPP-UHFFFAOYSA-L

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General description

Potassium carbonate (K2CO3) is a water-soluble inorganic compound that is primarily derived from potash. It is industrially prepared by reacting potassium hydroxide and carbon dioxide. The solution crystallizes to form potash hydrate, which can further be heated above 200°C to produce the anhydrous salt.

Application

K2CO3 can be used for a variety of applications such as:
  • production of soaps and glasses
  • drying agent for organic based compounds like ketones, alcohols, and amines
  • buffering agent to produce wine
  • ingredient in welding and other coatings

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Potassium compounds
Schultz H, et al.
Ullmann's Encyclopedia of Industrial Chemistry (2000)
A Convenient Stereoselective Reduction of gem-Dibromides with a Combination of Dimethyl Phosphite and Potassium Carbonate
Zhao Y, et al.
Phosph. Sulfur Relat. Elem. (2015)
Formic acid decomposition over palladium based catalysts doped by potassium carbonate
Jia L, et al.
Catalysis Today (2015)
Highly Selective and Sensitive Voltammetric Sensor Based on Ruthenium Nanoparticle Anchored Calix [4] amidocrown-5 Functionalized Reduced Graphene Oxide: Simultaneous Determination of Quercetin, Morin and Rutin in Grape Wine
Elcin S, et al.
Electroanalysis, 28(3), 611-619 (2016)
Transverse Tuning of TiO2 Nanotube Array by Controlling the Electrochemical Charge Transfer Resistance with Potassium Carbonate and Sodium Carbonate Composition in Ammonium Fluoride Electrolyte
Raj CC and Prasanth R
Journal of the Electrochemical Society, 162(4), E23-E29 (2015)
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