Botanical Identity: Acide tannique de type gallotannin (également appelé tanin gallique), composé polyphénolique d'origine naturelle
Tannin Content: Teneur élevée en tanins conforme à la classe chimique des gallotanins (poids moléculaire environ 1 434–1 701 g/mol, formule C76H52O46)
Standardization Level: Cohérence de couleur et de solubilité maintenue lot à lot (soluble dans l'eau, l'éthanol et l'acétone)

Autres informations

Description supplémentaire:

Tannic acid (also called tannin or gallic tannin) has molecular formula C76H52O46, a molecular weight of 1434-1701.18, and CAS number 1401-55-4. It appears as a light yellow to light brown powder that darkens and becomes bitter when exposed to air, is odorless, and dissolves in water, ethanol, acetone, and ethyl acetate. It serves as a raw material for producing gallic acid, pyrogallic acid, and sulfa drugs; as a mud treatment agent in the oil industry; and in leather tanning agents, mordants, rubber coagulant protein agents, alkaloid precipitants, beneficiation inhibitors, alcohol clarifying agents, germanium extraction/preparation, and blue-black ink production. It is packed in 25kg woven bags or 25kg fiber drums with inner plastic liners and should be stored away from moisture and light in a sealed container.