Potassium carbonate
Catalog Number
ACM584087
CAS
584-08-7
IUPAC Name
Dipotassium;carbonate
Synonyms
Dipotassium cabonate
Application
Potassium carbonate serves a versatile role in various industries due to its chemical properties. Primarily used in the production of specialty glass and ceramics, it provides significant advantages over sodium carbonate, such as compatibility with lead, barium, and strontium oxides, which enhance the glass's qualities by lowering its melting point and increasing its refractive index for a more brilliant appearance. Additionally, potassium carbonate is a valuable component in the chemical industry as a source of inorganic potassium salts, which find applications in fertilizers, soaps, adhesives, and pharmaceuticals. Its high water solubility and alkaline nature make it effective in agriculture, especially in treating acidic soils in vineyards and orchards, and it is a key ingredient in Dutch-processed cocoa for balancing acidity. With its diverse applications ranging from fire suppressants and CO2 absorbents to use in textiles and dyeing, potassium carbonate is an essential compound in modern industrial processes.
Molecular Weight
138.205
Molecular Formula
CK2O3
Product Information
Description
Potassium carbonate (K2CO3) is a white salt, soluble in water (insoluble in ethanol) which forms a strongly alkaline solution. It can be made as the product of potassium hydroxide’s absorbent reaction with carbon dioxide. It is deliquescent, often appearing a damp or wet solid. Potassium carbonate is used in the production of soap and glass.
Canonical SMILES
C(=O)([O-])[O-].[K+].[K+]
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
891 °C
Flash Point
111ºC
Purity
99%+
Density
2.43 g/mL at 25 °C (lit.)
Solubility
Very soluble in water, insoluble in ethanol
Appearance
Yellow powder
Storage
Store at +5 °C to +30 °C
Complexity
18.8
Covalently-Bonded Unit Count
3
Exact Mass
137.91215683
Heavy Atom Count
6
Monoisotopic Mass
137.91215683
Odor
Odorless
Rotatable Bond Count
0
Topological Polar Surface Area
63.2 Ų
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