Potassium carbonate

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Potassium carbonate
Chemical formula K2CO3
OTP appearance white powder 
Molar Mass(g/mol) 138 
Melting Point(°C) 891 
Density(g/cc) 2.43 
Solubility in water(g/L) 1100 
Solubility in ethanol(g/L) insoluble
NFPA 704
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Thermal decomposition of
Potassium carbonate
84.5
1.5-hydrate
84.5°C
anydrous
891
anhydrous
891°C
liquid
899-1141
liquid
899-1141°C
K2O,CO2

Uses

Primary

  • Primary potassium salt for metathesis reaction with calcium salts
  • Neutralization of acids

Natural occurrence

  • Potassium carbonate occurs naturally in wood ash.

Hazards

Production

From potash

Purification

Testing

Storage

Disposal

See Also

References