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Catalysts And Absorbents

Leading Manufacturer, Supplier & Retailer of Tannic Acid and Gallic Acid.

Tannic Acid

  • Storage Store in well-closed, light resistant nonmetallic containers
  • Empirical Formula C76H52O46
  • Molecular Weight 1701.19
  • Cas Number 1401-55-4
  • Solubility Freely soluble in water
  • Assay(On Dried Basis) Min. 93.00 %
  • Melting Range 171° to 175°C
  • Loss On Drying At 105°C Max. 10.00 %
  • Gums And Dextrin No Turbidity
  • Heavy Metals Max. 10 ppm
  • Arsenic Max. 3 ppm

Applications :

  • In foods and beverages, tannic acid is used as a flavoring agent
  • It is used as process aids in beer clarification, aroma compound in soft drinks and juices
  • Equally important are applications in the wine industry, where it finds use as a natural clarifying agent, colour stabilizer and taste enhancer
  • Tannic acid is used in ointments and suppositories for the treatment of hemorrhoids; for tanning hides and manufacturing ink; and to kill dust mites on furniture
  • It is also used in metal corrosion treatment products and in leather tanning

 

Chemical Name : 2, 3-dihydroxy-5-([(2R, 3R, 4S, 5R, 6R)-3, 4, 5, 6-tetrakis(3, 4-dihydroxy-5-[(3, 4, 5-trihydroxyphenyl)carbonyloxy]phenylcarbonyloxy)oxan-2-yl]methoxycarbonyl)phenyl 3, 4, 5-trihydroxybenzoate

 

Light Yellow Amorphous Powder

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Gallic Acid

  • Purity Min 99.50%
  • Chemical Name 3, 4, 5-trihydroxybenzoic Acid
  • Empirical Formula C7H6O51
  • Molecular Weight 170.122
  • Cas Number 5995-86-8
  • Category Antioxidant
  • Melting Point 258 to 265 °C (dec.)
  • Sulphate Max 0.02%
  • Residue on Ignition Max 0.1%
  • Loss on Drying Max. 10.0%

Applications :

  • Photographic developer, Ink, in tanning, in dyeing, in testing for free mineral acids, dihydroxyacetone & alkaloids
  • Esters as antioxidants

 

White to Creamy white, crystalline powder; almost odorless

 

Solubility -Freely soluble in ethanol (95 %) and in acetone. Slightly soluble in cold water & ether. Soluble in hot water

 

 

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