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Potassium carbonate Structure

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 +5°C to +30°C.
solubility  H2O: 1 M at 20 °C, clear, colorless
form  powder
pka 10.33[at 20 ℃]
color  Yellow
Specific Gravity 2.29
PH 10.52(1 mM solution);11(10 mM solution);11.36(100 mM solution);
Water Solubility  1120 g/L (20 ºC)
Sensitive  Hygroscopic
λmax λ: 260 nm Amax: 0.03
λ: 280 nm Amax: 0.02
Merck  14,7619
BRN  4267587
Stability Stable. Incompatible with moisture, acids, magnesium bromine trifluoride and magnesium bromine trichloride.
CAS DataBase Reference 584-08-7(CAS DataBase Reference)
NIST Chemistry Reference Dipotassium carbonate(584-08-7)
EPA Substance Registry System Potassium carbonate (584-08-7)

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H315-H319-H335
Precautionary statements P261-P264-P271-P280-P302+P352-P305+P351+P338
Hazard Codes  Xn
Risk Statements  22-36/37/38-20/21/22
Safety Statements  26-36-37/39
RIDADR  3262
WGK Germany  1
RTECS  TS7750000
3
TSCA  Yes
PackingGroup  III
HS Code  28364000
Hazardous Substances Data 584-08-7(Hazardous Substances Data)
Toxicity LD50 orally in rats: 1.87 g/kg, H. F. Smyth et al., Am. Ind. Hyg. Assoc. J. 30, 470 (1969)
NFPA 704:
0
2 1

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