| CAS# | 1401-55-4 |
| FORMULA | C76H52O46 |
| INS Number | 181 |
| E Number | E181 |
| Synonyms | Gallotannic acid; Tannin |
| GROUPS/USES | Food & Beverage, Metal Working, Finishing & Flux, Textile Auxiliaries, Dyes |
| Markets | Food & Beverage, Surface Treatment – Fluids, Lubricants & Metalworking, Textiles |
FAQ’S
What is Tannic acid?
Tannic acid is a polyphenol, weak acid that is used in medicine, food, beverages, and manufacturing.
What are the uses of Tannic acid?
Tannic acid is used as a flavoring agent in foods and beverages. It is used in ointments and suppositories. It is used for tanning hides, manufacturing ink and to kill dust mites on furniture. It is used to treat conditions such as cold sores, diaper rash, and heat rash.
What are the health hazards of Tannic acid?
Tannic acid can cause potential health hazards such as damage to the eye, skin, respiratory tract, and gastrointestinal tract. Prolonged exposure to tannic acid may cause liver damage.
Choice Organochem LLP supplies Tannic acid to users/customers for Food & Beverage, Metal Working, Finishing & Flux, and Textile Auxiliaries.
Tannic acid Specifications
Food Chemicals Codex (FCC)
| Test Items | Specifications |
| Appearance | An amorphous powder, as glistening scales, or as spongy masses, varying in color from yellow-white to light brown |
| Solubility | Very soluble in water, in acetone, and in alcohol; slightly soluble in absolute alcohol; and practically insoluble in chloroform, in ether, and in solvent hexane. 1gm dissolves in about 1ml of warm glycerin |
| Assay | NLT 96% |
| Gums or Dextrin | Passes test |
| Lead | NMT 2 mg/kg |
| Loss on Drying | NMT 7.0% |
| Residue on Ignition | NMT 1.0% |
| Resinous Substances | Passes tests |