Description
DryPowder; Liquid; OtherSolid; PelletsLargeCrystals;White, very deliquescent powder.; The hydrate occurs as small, white, translucent crystals or granules;COLOURLESS HYGROSCOPIC CRYSTALS OR HYGROSCOPIC WHITE POWDER.
IUPAC Name
dipotassium;carbonate
Molecular Weight
138.205g/mol
Molecular Formula
K2CO3? nH₂O (n = 0 or 1,5);K2CO3;K2CO3;CK2O3
InChI
InChI=1S/CH₂O3.2K/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
InChI Key
BWHMMNNQKKPAPP-UHFFFAOYSA-L
Boiling Point
Decomposes
Melting Point
Mp 901 °;899 °C;891 °C
Density
2.29 g/cu cm;2.29 g/cm³
Solubility
Very soluble in water. Insoluble in ethanol;cold water];Insoluble in alcohol and acetone;111 g/100 g water at 25 °C;Soluble in 1 part cold, 0.7 part boiling water.;Solubility in water (g K2CO3/100 g H₂O): 105.5 at 0 °C; 108.0 at 10 °C; 110.5 at 20 °C; 113.7 at 30 °C; 155.7 at 100 °C;Solubility in water, g/100ml at 20 °C: 112
Color Form
Colorless cubic crystals; hygroscopic;Granules or granular powder;White, deliquescent, granular, translucent powder
Complexity
18.8
Covalently-Bonded Unit Count
3
Decomposition
When heated to decomposition it emits toxic fumes of K2O.
EC Number
209-529-3;209-529-3
Exact Mass
137.912157g/mol
Formal Charge
0
H-Bond Acceptor
3
H-Bond Donor
0
Heavy Atom Count
6
ICSC Number
1588
MeSH Entry Terms
K2CO3;potassium carbonate;potassium carbonate sesquihydrate
Monoisotopic Mass
137.912157g/mol
Odor
Odorless
Other Experimental
Hygroscopic;Enthalpy of fusion: 27.60 kJ/mol at 899 °C;Decomposes on heating with CO2 loss.;Deliquesces in moist air;K2CO3 forms several hydrates, of which K2CO3.1.5H₂O is the stable phase in contact with the saturated solution from 0 °C to about 110 °C.;Granular crystals; solubility 111 g/100 g water at 20 °C /Potassium carbonate sesquihydrate/;When it contains the full amount of water (16.36%) it is not hygroscopic. The aqueous solution is strongly alkaline. /Potassium carbonate sesquihydrate/
Rotatable Bond Count
0
RTECS Number
TS7750000
UNII
BQN1B9B9HA
