TANNINS

Dye tannic acid

Molecular formula:



Production scale: 200 Tons / year
Synonyms: tannic acid, tannin, gallnut tannic acid
Molecular formula and molecular weight:C76H52O46  1701.18
Properties: Light yellow to light brown powder, and has special smell, with obscure flavor; It could be dissolved in 1 share of water or ethyl alcohol and Aceton, instead of chloroform or diethyl ether.
Uses: Used as the dye-fixing agent, dye mordant, fiber deodorization agent and synthetic dyestuff in the textile printing and dyeing.
Storage: Stored in an airtight container.
Package: Inner plastic and outer woven bags, 25 kg net weight per bag.
Quality standard:

 Tannic acid content

≥ 81

 Drying weightlessness%

≤ 9

 Aqueous Solution State

 Below micro corrosion

 Specific absorbance

≥ 420

 Gallic acid content

≤ 7

 Total color

≤ 2.0

4000117978

SCAN