Potassium Carbonate
CK2O3, 138.204 g/mol. Its structure, the values that were measured, the values that were calculated, and where each one came from.
Identifiers
- Molecular formula
- CK₂O₃
- Molecular weight
- 138.204 g/mol
- Exact mass
- 137.912157 g/mol
- IUPAC name
- dipotassium;carbonate
- O=C([O-])[O-].[K+].[K+]
- InChI=1S/CH2O3.2K/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L
Measured properties
Values somebody obtained from a sample and published. Where two sources report the same property they are both shown, in the units each used — a disagreement between them is information, and averaging it away would be inventing a number neither one gave.
- Boiling Point
- Decomposes
- Melting Point
- 899 °C
- 891 °C
- Density
- 2.29 g/cu cm
- 2.29 g/cm³
- Solubility
- Very soluble in water. Insoluble in ethanol
- For more Solubility (Complete) data for POTASSIUM CARBONATE (6 total), please visit the HSDB record page.
Calculated properties
Derived from the structure rather than from a sample. These are reproducible and they are not measurements: a calculated partition coefficient and a measured one can differ by a long way, and where both exist they are listed apart on purpose.
- Molecular weight
- 138.205 g/mol
- Exact mass
- 137.91215683 Da
- Polar surface area
- 63.2 Ų
- Complexity
- 18
- H-bond donors
- 0
- H-bond acceptors
- 3
- logP
- -8.439
- Topological polar surface area
- 63.19 Ų
- H-bond donors
- 0
- H-bond acceptors
- 3
- Rotatable bonds
- 0
- Molar refractivity
- 5.396 cm³/mol
- Fraction sp³ carbons
- 0
- QED drug-likeness
- 0.3123
What it is made of
Elements
Structure
- Heavy atoms, hydrogen excluded
- 6
- Total atoms, hydrogen included
- 6
- Rings
- 0
- Aromatic rings
- 0
- Stereocentres
- 0
- Formal charge
- 0
The molecule in three dimensions
The drawing above is a diagram of what is bonded to what. A molecule is not flat, and the model here is one low-energy shape generated from the connectivity — useful for seeing which groups can reach each other, and not a measured structure. A real sample is a population of conformations, interconverting.
Reactions it appears in
20 documented reactions involve Potassium Carbonate, each with a written procedure and a source, and all of them are buchwald–hartwig amination. A few are shown.
Buchwald–Hartwig amination
Buchwald–Hartwig amination · as a reagent
A recorded experiment with its conditions, its yield where one was published, and a link to the source.
Buchwald–Hartwig amination
Buchwald–Hartwig amination · as a reagent
A recorded experiment with its conditions, its yield where one was published, and a link to the source.
Buchwald–Hartwig amination
Buchwald–Hartwig amination · as a reagent
A recorded experiment with its conditions, its yield where one was published, and a link to the source.
Other names for it
The systematic name on this record is dipotassium;carbonate.
The sources also call it Dipotassium carbonate, Carbonate of potash, Potassium carbonate, anhydrous, Carbonic acid, dipotassium salt, Pearl ash, Salt of tartar, Kaliumcarbonat, Kalium carbonicum, K-Gran, Potassium carbonate (K2CO3).
Structurally related
Seen alongside it in reaction records
Molecules that appear in the same recorded reactions as Potassium Carbonate. This says nothing about structure: most of them are the bases, solvents, ligands and catalysts the chemistry needed, and they are here because somebody put them in the same flask.
(2S)-2-aminopentan-1-ol
used as a reactant
C₅H₁₃NO, 103.165 g/mol.
1,4-Dioxane
C₄H₈O₂, 88.106 g/mol.
1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)
C₃₉H₃₂OP₂, 578.632 g/mol.
(5S)-5-ethyl-1,3-oxazolidin-2-one
used as a reactant
C₅H₉NO₂, 115.132 g/mol.
(R)-2-chloro-6-methyl-8-phenyl-5,6,7,8-tetrahydropyrimido[5,4-f][1,4]oxazepine
used as a reactant
C₁₄H₁₄ClN₃O, 275.739 g/mol.
(2R)-8-chloro-4-methyl-2-phenyl-3,5-dihydro-2H-pyrido[3,2-f][1,4]oxazepine
used as a reactant
C₁₅H₁₅ClN₂O, 274.751 g/mol.
Where these values came from
chemistry engine
What this page does not claim
The identifiers are what the source record holds, copied rather than recomputed. Measured values are reported as their source gave them, units and all; calculated values are marked as calculated and are not measurements. Where a field is absent the page says so, because a blank cell reads as a zero and a guessed value reads as a fact.
Nothing here is a hazard assessment, a purity statement or advice about handling a sample. A flash point quoted from a safety database is a number somebody published, not a judgement by us about whether this molecule is safe for what you intend.