tannin
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| Name | tannin |
| CAS number | 1401-55-4 |
| Chemical formula | C 76 H 52 O 46 |
Tannin is a fine beige, light yellow or light brown powder that dissolves in water, alcohol and glycerin.
Tannin is used in various industries.
In the textile industry, it is used for tanning leather and fur, pickling textile fibers, and in the preparation of ink.
Tannin is also used in the food industry as an additive E181. Get it from the bark of spruce, chestnut, acacia. It has an astringent taste and is used as a dye. Tannin can form strong bonds with polysaccharides, proteins and other biopolymers.
Including tannin is used in medicine. It is used as astringent drugs, as an antidote for poisoning with salts of heavy metals (lead, mercury, etc.), as a hemostatic and antihemorrhoidal agent.
