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Tannic acid CAS#1401-55-4

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Chemical Name：Tannic acid

CAS No.1401-55-4

Molecular Formula:C76H52O46

Molecular weight:1701.2

Sample: Available

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Product Details

Products Description of Tannic acid CAS#1401-55-4

This product is a light yellow to light brown powder with a special odor and an extremely astringent taste; soluble in 1 part of water or ethanol, soluble in acetone, and insoluble in chloroform or ether.

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.)
Fp	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)
IARC	3 (Vol. 10, Sup 7) 1987
EPA Substance Registry System	Tannic acid (1401-55-4)

Safety Information

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

Product Application of Tannic acid CAS#1401-55-4

Clarifier, astringent agent, crude oil deodorizer, aroma auxiliary; tannic acid can be used in tanning, ink manufacturing, paper and silk gluing, boiler descaling, etc. It can also be used as a mordant, beer and wine clarifying agent , rubber coagulant, etc. It can be used in printing and dyeing, metallurgy, medicine and other industries. The toxicity of tannic acid itself is very low. Precipitation and gravimetric determination of beryllium, aluminum, gallium, indium, niobium, tantalum and zirconium. Specific determination of copper, iron, vanadium, cerium and cobalt. Precipitating agent for proteins and alkaloids. Ammonium molybdate is used as an external indicator in the titration of lead. Dye mordant.

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