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367877

Sigma-Aldrich

Potassium carbonate

99.995% trace metals basis

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Synonym(s):
Dipotassium carbonate
Linear Formula:
K2CO3
CAS Number:
Molecular Weight:
138.21
Beilstein:
4267587
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

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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This Item
P583360109347825
Potassium carbonate 99.995% trace metals basis

Sigma-Aldrich

367877

Potassium carbonate

-
Potassium carbonate BioXtra, ≥99.0%

Sigma-Aldrich

P5833

Potassium carbonate

-
Potassium carbonate puriss. p.a., ACS reagent, anhydrous, ≥99.0% (T)

Sigma-Aldrich

60109

Potassium carbonate

Essential Grade
Potassium carbonate reagent grade, ≥98%, powder, −325 mesh

Sigma-Aldrich

347825

Potassium carbonate

-
form

powder and chunks

form

powder

form

powder or crystals

form

powder

impurities

≤55.0 ppm Trace Metal Analysis

impurities

≤0.0005% Phosphorus (P), ≤0.1% Insoluble matter

impurities

≤0.001% total nitrogen (N), ≤0.004% total sulfur (as SO4)

impurities

-

mp

891 °C (lit.)

mp

891 °C (lit.)

mp

891 °C (lit.)

mp

891 °C (lit.)

solubility

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

solubility

H2O: 1 M, clear, colorless

solubility

-

solubility

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

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

Signal Word

Warning

Hazard Statements

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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