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Sodium bicarbonate Structure

Sodium bicarbonate

Chemical Properties

Melting point >300 °C(lit.)
Boiling point 851°C
Density  2.16 g/mL at 25 °C (lit.)
refractive index  1.500
storage temp.  2-8°C
solubility  H2O: 1 M at 20 °C, clear, colorless
form  solution (7.5%)
color  White
Specific Gravity 2.159
PH Range 7.8 - 8.2
PH 8.27(1 mM solution);8.22(10 mM solution);8.02(100 mM solution);
pka (1) 6.37, (2) 10.25 (carbonic (at 25℃)
Odor Odorless
Water Solubility  9 g/100 mL (20 ºC)
Decomposition  50 °C
Merck  14,8583
BRN  4153970
BCS Class 1
Stability Stable.
LogP -4.010 (est)
FDA 21 CFR 184.1736; 582.1736; 155.191; 310.545; 347.10
Substances Added to Food (formerly EAFUS) SODIUM BICARBONATE
SCOGS (Select Committee on GRAS Substances) Sodium bicarbonate
CAS DataBase Reference 144-55-8(CAS DataBase Reference)
EWG's Food Scores 1
NCI Drug Dictionary sodium bicarbonate
ATC code B05CB04,B05XA02
EPA Substance Registry System Sodium bicarbonate (144-55-8)
Cosmetics Info Sodium Bicarbonate


Signal wordWarning
Hazard statements H319-H303
Precautionary statements P264-P280i-P305+P351+P338-P337+P313
Safety Statements  24/25
WGK Germany  1
RTECS  VZ0950000
HS Code  28363000
Hazardous Substances Data 144-55-8(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 4220 mg/kg
NFPA 704:
2 1

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