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Sodium carbonate Structure

Sodium carbonate

Chemical Properties

Melting point 851 °C (lit.)
Boiling point 1600°C
Density  2.53
refractive index  1.535
storage temp.  15-25°C
solubility  H2O: 1 M at 20 °C, clear, colorless
form  Solid
Specific Gravity 2.532
color  White
PH 10.52(1 mM solution);10.97(10 mM solution);11.26(100 mM solution);
Odor at 100.00?%. odorless
pka (1) 6.37, (2) 10.25 (carbonic (at 25℃)
Water Solubility  22 g/100 mL (20 ºC)
Sensitive  Hygroscopic
λmax λ: 260 nm Amax: 0.01
λ: 280 nm Amax: 0.01
Merck  14,8596
BRN  4154566
Dielectric constant 5.3(Ambient)
Stability Stable. Incompatible with powdered alkaline earth metals, aluminium, organic nitro compounds, fluorine, alkali metals, nonmetallic oxides, concentrated sulfuric acid, oxides of phosphorus.
CAS DataBase Reference 497-19-8(CAS DataBase Reference)
NIST Chemistry Reference Sodium carbonate(497-19-8)
EPA Substance Registry System Sodium carbonate (497-19-8)

Safety Information

Hazard Codes  Xn,Xi
Risk Statements  32-36-51/53-36/37/38-41-37/38
Safety Statements  36/37-26-22-36-39
WGK Germany  2
RTECS  XN6476000
HS Code  28362000
Hazardous Substances Data 497-19-8(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 4090 mg/kg


Usage And Synthesis

Preparation Products And Raw materials

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