Potassium carbonate
Properties
- Molecular formula
- CK2O3
- Molar mass
- 138.20 g/mol
- Exact mass
- 137.9122 Da
- Density
- 2.29 g/mL
- Melting point
- 891 °C
- logP
- -0.54Crippen estimate
- Polar surface area
- 57.5 Ų
- H-bond donors / acceptors
- 2 / 1
- Rotatable bonds
- 0
Hazards
No GHS classification is on file for this compound. That is not evidence that it is harmless.
Identifiers
CAS number
584-08-7SMILES
[O-]C([O-])=O.[K+].[K+]InChI
The InChI we hold for this record describes the parent acid and the metal separately rather than the salt above, so it is not shown here.
Weigh it out
Type any one amount. The others follow from the molar mass and density.
Names and synonyms
16 names · show all
- Carbonic acid, potassium salt (1:2)
- Potassium carbonate (K2CO3)
- Carbonic acid, dipotassium salt
- Pearl ash
- Potassium carbonate (K2(CO3))
- Dipotassium carbonate
- Potassium carbonate (2:1)
- Potash
- Salt of tartar
- Sorb KX 35
- FG
- DCAD Plus
- CLIMB
- PX 1390-1
- EF 80
- LH 90
Reactions
Safety data sheets
One stored sheet lists this compound in section 3, matched by the CAS number 584-08-7. Each row opens the sheet with its composition and PDF.
Work with Potassium carbonate
Stereoisomers, salts and isotopologues
The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.
Sodium bicarbonate144-55-8Salt
Sodium carbonate497-19-8Salt
Sodium percarbonate15630-89-4Salt
Calcium carbonate471-34-1Salt
Magnesium carbonate546-93-0Salt
Lithium carbonate554-13-2Salt
White lead1319-46-6Salt
Basic copper carbonate12069-69-1Salt
Hydrotalcite (mg6(CO3)[al(OH)6]2(OH)4.4H2O)12304-65-3Salt
Potassium bicarbonate298-14-6Salt
Strontium carbonate1633-05-2Salt
Barium carbonate513-77-9Salt
Similar compounds
Dipotassium oxalate583-52-850 % similar
Zirconium carbonate oxide hydrate (Zr3O5(CO3).H2O)12671-00-043 % similar
[μ-[Carbonato(2-)-κO:κO′]]dihydroxydioxodizirconium57219-64-443 % similar
Diammonium bis(carbonato)dihydroxyzirconate(2-)68309-95-543 % similar
Potassium acetate127-08-242 % similar
Potassium oxalate monohydrate6487-48-542 % similar
Potassium acrylate10192-85-536 % similar
Potassium hydrogenoxalate127-95-736 % similar
Tanimoto similarity of circular fingerprints over the whole catalogue.