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  4. Gallic Acid anhydrous CAS 149-91-7
  • Gallic Acid anhydrous CAS 149-91-7
  • Gallic Acid anhydrous CAS 149-91-7
  • Gallic Acid anhydrous CAS 149-91-7
  • Gallic Acid anhydrous CAS 149-91-7
Gallic Acid anhydrous CAS 149-91-7 Gallic Acid anhydrous CAS 149-91-7 Gallic Acid anhydrous CAS 149-91-7 Gallic Acid anhydrous CAS 149-91-7

Gallic Acid anhydrous CAS 149-91-7

  • Product Item:CAS 149-91-7
  • CAS 149-91-7
  • MF:C7H6O5
  • Appearance:White crystal powder
  • Content:99.14%
  • Gallic Acid anhydrous  , chemical  , drugs  , 149-91-7  , C7H6O5
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    Description

    INTRODUCATION 
    Gallic acid is a trihydroxybenzoic acid found in gallnuts, sumac, witch hazel, tea leaves, oak bark, and other plants.
    Gallic acid is found both free and as part of hydrolyzable tannins. The gallic acid groups are usually bonded to form dimers such as ellagic acid. Hydrolysable tannins break down on hydrolysis to give gallic acid and glucose or ellagic acid and glucose, known as gallotannins and ellagitannins respectively.
    Main Functions
    1.Gallic acid has antibacterial effect and can treat bacillary dysentery. It has astringent, hemostasis and antidiarrheic effects;
    2.In food industry, it can be used to prepare preservative propyl gallate;
    3.It can be used in the production of mordant dyes and as a developer, etc.;
    4.It forms blue-black precipitate with ferric ion, which is the raw material of blue-black ink;
    5.It can be combined with vitamin C as a fortified bait to raise fish;

    6.It is also used in tanning industry and can also be used as a photographic developer.

    PRODUCTS: Gallic Acid anhydrous
    QUANTITY: 1525KG
    ITEMS SPECIFICATIONS RESULTS
    Appearance White crystal powder Conforms
    Content ≥99.0 99.14%
    Loss on Drying ≤0.5 0.13
    lgnited residue ≤0.10% 0.05%
    Sulphated(SO4²⁻)% ≤0.01% <0.01%
    Chloride(Cl)% ≤0.01% <0.01%
    Turbidity(NTU) ≤10 5
    Experiment of Tannic acid No turbidity No turbidity
    Platinum-Cobalt Color Standards ≤180 160
    CONCLUSION:Conform to the specifications.
    STORAGE:Store in cool and dry place.

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