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Tannic acid Structure

Tannic acid

Chemical Properties

Melting point 218 °C (lit.)
Boiling point 862.78°C (rough estimate)
Density  1.2965 (rough estimate)
refractive index  1.7040 (estimate)
FEMA  3042 | TANNIC ACID (QUERCUS SPP.)
Flash point 198°C
storage temp.  Storage temperature: no restrictions.
solubility  ethanol: soluble100mg/mL, yellow to brown
form  Powder/Solid
color  Yellow to light brown
PH 3.5 (100g/l, H2O, 20°C)
Odor Slight in solution, typical tannic acid
Water Solubility  250 g/L (20 ºC)
Sensitive  Air & Light Sensitive
Merck  14,9052
BRN  8186396
Stability Stable. Incompatible with metallic salts, strong oxidizing agents, iron and other heavy metals.
InChIKey LRBQNJMCXXYXIU-PPKXGCFTSA-N
LogP 13.327 (est)
FDA 21 CFR 184.1097; 310.545; 582.20
Substances Added to Food (formerly EAFUS) TANNIC ACID
SCOGS (Select Committee on GRAS Substances) Tannic acid (hydrolyzable gallotannins)
EWG's Food Scores 1
NCI Dictionary of Cancer Terms tannic acid
FDA UNII 28F9E0DJY6
IARC 3 (Vol. 10, Sup 7) 1987
EPA Substance Registry System Tannic acid (1401-55-4)

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H303
Precautionary statements P270-P301+P312-P403-P501c
Hazard Codes  Xi,Xn
Risk Statements  40-62-63-68-36/37/38-52/53
Safety Statements  24/25-36-26-36/37/39-22-61
WGK Germany  2
RTECS  WW5075000
Autoignition Temperature 980 °F
TSCA  Yes
HS Code  32019090
Hazardous Substances Data 1401-55-4(Hazardous Substances Data)
Toxicity LD50 oral in rabbit: 5gm/kg
NFPA 704:
1
1 0

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