Food Additives Anhydrous Potassium Carbonate CAS NO.584-08-7

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Potassium carbonate Basic information
Description Chemical Properties Uses Production method Reference quality standards Content Analysis Solubility of potassium carbonate in water Toxicity Limited use References
Product Name:    Potassium carbonate
Synonyms:    PotassiumCarbonateFcc;PotassiumCarbonateAnhydrousK2CO3;PotassiumCarbonateAnhydrousAr;PotassiumCarbonatePurified(Anhydrous);Carbonicacid,dipotassiumsalt;Carbonicaciddipotassiumsalt;dipotassiumcarbonate;K2CO3
CAS:    584-08-7
MF:    K2CO3
MW:    138.21
EINECS:    209-529-3

Potassium carbonate Chemical Properties
Melting point     891 °C(lit.)
Boiling point     decomposes [STR93]
density     2.43 g/mL at 25 °C
storage temp.     Store at RT.
solubility     H2O: 1 M at 20 °C, clear, colorless
form     powder
color     Yellow
Specific Gravity    2.29
PH    11.5-12.5 (50g/l, H2O, 20℃)
Water Solubility     1120 g/L (20 ºC)
λmax    λ: 260 nm Amax: 0.03
λ: 280 nm Amax: 0.02
Sensitive     Hygroscopic

Uses    Used (1) in making special glasses, (2) in the making of soft soap, (3) in the preparation of other potassium salts (a) in solution, (b) upon fusion; potassium hydrogen carbonate, potassium bicarbonate, potassium acid carbonate, KHCO3, white solid, soluble, (4) in vat dyeing and textile printing, (5) in titanium enamels, (6) in boiler water treating compounds, (7) in photographic chemical formulations, (8) in electroplating baths, and (9) as an important absorbent for CO2 in the process industries.