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A6707012

Potassium carbonate , GR,99.5% , 584-08-7

Synonym(s):
Dipotassium carbonate;potash;Potassium carbonate

CAS NO.:584-08-7

Empirical Formula: K2CO3

Molecular Weight: 138.21

MDL number: MFCD00011382

EINECS: 209-529-3

Pack Size Price Stock Quantity
500G RMB71.20 In Stock
2.5kg RMB310.40 In Stock
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Update time: 2022-07-08

PRODUCT 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
pka 10.33[at 20 ℃]
form  powder
Specific Gravity 2.29
color  Yellow
Odor at 100.00?%. odorless
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
Dielectric constant 5.6(16.0℃)
Stability: Stable. Incompatible with moisture, acids, magnesium bromine trifluoride and magnesium bromine trichloride.

Description and Uses

Potassium carbonate is used in the chemical industry as a source of inorganic potassium salts (potassium silicates, potassium bicarbonate), which are used in fertilizers, soaps, adhesives, dehydrating agents, dyes, and pharmaceuticals. Potassium carbonate used to make potassium lye produces soft soaps, which are liquids or semisolids rather than solids. Other uses of potassium carbonate includes use as a fire suppressant in extinguishers, as a CO2 absorbent for chemical processes and pollution control, an antioxidant in rubber additives, and in pharmaceutical formulations.

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
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
Toxicity LD50 orally in rats: 1.87 g/kg, H. F. Smyth et al., Am. Ind. Hyg. Assoc. J. 30, 470 (1969)

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