Tannic acid

Post Date:
Jun 24,2013
Expiry Date:
Dec 21,2013
Detailed Description:
Cas No. :1401-55-4 Tannic acid 　
EINECS:215-753-2　
Molecular Formula:C76H52O46　
CAS Registry Number:1401-55-4　
Molecular Weight:1701.22　
Density:2.12 g/cm3　
Water solubility:250 g/L (20℃)　
Melting Point:218℃Flash Point:198℃Storage Temperature:Store in a cool,dry,well-ventilated area away from incompatible substances. Keep containers tightly closed. Store protected from light.　
Refractive index:1.927　
Solubility:250 g/L (20 °C) in water　
Appearance:light yellow to tan solid with a faint odor　
Stability:Stable. Incompatible with metallic salts,strong oxidizing agents,iron and other heavy metals.　
Usage:　
Mordant in dyeing,manufacture ink,sizing paper & silk,printing fabrics,tanning,as coagulant in rubber mfr,with gelatin & albumin for manufacture of imitation horn & tortoise shell,clarifying beer or wine,in photography,manufacture gallic acid & pyrogallol,as reagent in analytical chemistry.　
CAS Registry Number:
1401-55-4
Synonyms:
;Chinese tannin;Gallotannic acid;Gallotannin;Galloylglucose;Glycerite;Penta NM digalloyl glucose;Quebracho;Tannins;1,3,6-tris-O-(3,4,5-trihydroxybenzoyl)hexopyranose;1,2,3,4,6-pentakis-O-[(3,4-dihydroxy-5-{[(3,4,5-trihydroxyphenyl)carbonyl]oxy}phenyl)carbonyl]hexopyranose;
Molecular Formula:
C₇₆H₅₂O₄₆
Molecular Weight:
1701.1985
Molecular Structure:
Safety Description:
S24/25:;

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