Tannic acid

Agent Name
Tannic acid
CAS Number
1401-55-4
Major Category
Other Classes
Synonyms
Acacia mollissima tannin; Acid, tannic; Acide tannique [French]; Castanea sativa Mill tannin; Gallotannic acid; Gallotannin; Glycerite; Liquidambar styraciflua; Quebracho wood extract; Schinopsis lorentzii tannin; Tannic acid; Tannic acid (Quercus spp.); Tannic acid; Tannin; Tannin; Tannin from chestnut; Tannin from mimosa; Tannin from quebracho; Tannin from sweet gum; Tannins; d'Acide tannique [French]; Chestnut tannin; Mimosa tannin; Quebracho tannin; Sweet gum; Hydrolyzable gallotannin; Quebracho extract; [ChemIDplus] Tannin; Gallotannin; Gallotannic acid; [Merck Index]
Category
Other Organic Compounds
Description
Yellowish to light brown solid; [HSDB]
Sources/Uses
Used as a dye mordant and to make ink, sizing paper, silk, and printed fabrics; Also used in tanning, rubber manufacturing, beer and wine clarifying, photography, and medicine (astringent and topical treatment of burns); Extracted from nutgall; Occurs in bark and fruit of many plants; [Merck Index] Also used in treatment of waste water and boiler water; [HSDB]
Comments
Commercial tannic acid (C76-H52-O46) usually contains about 10% water; [Merck Index] Corrosive to skin; [Quick CPC] A skin, eye, and respiratory tract irritant; [CAMEO]
Biomedical References
Search PubMed

Exposure Assessment

Explanatory Notes
Flash point = 390 deg F; [HSDB]
NFPA
must be preheated

Adverse Effects

Dermatotoxin
Skin burns
IARC Carcinogen
Not classifiable

Diseases, Processes, and Activities Linked to This Agent

Processes

Industrial Processes with risk of exposure: