Potassium carbonate

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Potassium carbonate
Potassium Carbonate 2D structure.png
Potassium-carbonate-xtal-3D-SF.png
Potassium carbonate.jpg
Names
IUPAC name
Potassium carbonate
Ither names
Potash, pearl ash
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.008.665
E nummer E501 (acidity regulators, ...)
RTECS nummer TS7750000
UNII
Properties
K2CO3
Molar mass 138.205 g/mol
Appearance white, hygroscopic solid
Density 2.43 g/cm3
Meltin pynt 891 °C (1,636 °F; 1,164 K)
Bylin pynt decomposes
112 g/100 mL (20 °C)
156 g/100 mL (100 °C)
Solubility insoluble in alcohol, acetone
Hazards
Main hazards Irritant
R-phrases R22 R36 R37 R38
NFPA 704
Flammability code 0: Will nae burn. E.g., watterHealth code 1: Exposur would cause irritation but anly minor residual injury. E.g., turpentineReactivity code 0: Normally stable, even unner fire exposur condeetions, an is nae reactive wi watter. E.g., liquid nitrogenSpecial hazards (white): no codeNFPA 704 four-colored diamond
0
1
0
Flash pynt Non-flammable
Lethal dose or concentration (LD, LC):
1870 mg/kg (oral, rat)[1]
Relatit compoonds
Ither anions
Potassium bicarbonate
Ither cations
Lithium carbonate
Sodium carbonate
Rubidium carbonate
Caesium carbonate
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Potassium carbonate (K2CO3) is a white saut, soluble in watter (insoluble in ethanol[2]), which forms a strangly alkaline solution.

References[eedit | eedit soorce]