• An electrostatic potential map (blue is positive and red is negative charge) of decagalloyl tannic acid, i.e. a tannic acid derived from ten molecules of gallic acid.
  • Uses of Tannic acid: Tannic acid is a common mordant used in the dyeing process for cellulose fibers such as cotton, often combined with alum and/or iron.
  • Tannic acid (TAN-ik AS-id) is a pale yellow amorphous powder, shiny scales, or spongy material that gradually darkens when exposed to air.
  • Tannic acid powder possesses antiviral, antibacterial, and antioxidant properties, making it useful in the prevention and treatment of various diseases.
  • Tannic acid is a specific form of tannin a type of polyphenol. Its weak acidity (pKa around 6) is due to the numerous phenol groups in the structure.
  • It is a type of tannin, a class of astringent polyphenolic compounds. Tannic acid is extracted from gallnuts, oak bark, sumac berries, and other plant sources.
  • Tannic acid itself has very low toxicity. Precipitation and gravimetric determination of beryllium, aluminum, gallium, indium, niobium, tantalum and zirconium.
  • As the phenols are considered weak acids thus, tannic acid is a weak acid. Acidum tannicum or Gallotanic acid are two other names of tannic acid.
  • Tannic acid is a specific form of tannin, a type of polyphenol. Tannic acid's weak acidity (pKa around 6) is due to the numerous phenol groups in the structure.