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Gallic acid Structure

Gallic acid

Chemical Properties

Melting point 251 °C (dec.) (lit.)
Boiling point 259.73°C (rough estimate)
Density  1.694
vapor pressure  0Pa at 25℃
refractive index  1.5690 (estimate)
storage temp.  2-8°C
solubility  Methanol (Slightly), Water (Slightly, Heated)
form  Powder
pka 4.41(at 25℃)
color  Off-white
PH 3.75(1 mM solution);3.22(10 mM solution);2.71(100 mM solution)
Water Solubility  12 g/L cold water
Merck  14,4345
BRN  2050274
Stability Stability Stable, but may discolour upon exposure to light. Hygroscopic. Incompatible with strong oxidizing agents, strong bases, acid chlorides, acid anhydrides.
LogP 0.7
CAS DataBase Reference 149-91-7(CAS DataBase Reference)
NIST Chemistry Reference Benzoic acid, 3,4,5-trihydroxy-(149-91-7)
EPA Substance Registry System Gallic acid (149-91-7)

Safety Information

Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-24/25-37/39
WGK Germany  2
RTECS  LW7525000
HS Code  29182900
Hazardous Substances Data 149-91-7(Hazardous Substances Data)
Toxicity LD50 in rabbits (g/kg): 5.0 orally (Dollahite)


Usage And Synthesis

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