Tannic Acid

Item #: TA100 M.Wt: 1701.28
CAS No: [1401-55-4] M.Wt: 1701.28
M.Fm: C76H52O46
Synonyms: Tannins (food grade), gallotannic acid, INS No. 181

Description:
It is a food grade, amorphous powder in light yellowish to light brown colour, glistening scales or spongy mass; odourless or with a faint, characteristic odour. It is soluble in water and alcohol.

Applications:
Commonly used in food and beverage as a clarifying agent, flavouring agent and flavour adjunct.

Specifications:
Assay …………………………. > 92.0%
Loss on drying …………………………. < 9.0% (105̊C, 2 h)
Insoluble in water …………………………. < 0.2%
Residue on Ignition …………………………. ≤ 0.2%
Heavy Metals …………………………. ≤ 20 ppm
Lead (Pb) …………………………. ≤ 10 ppm
Arsenic …………………………. ≤ 3 ppm
Total colour ..………………………… 1.5 max

Packaging and Storage:
Preserved in 25 kg drums. Store in a cool, dry place away from light.

Shelf life: 2 years.

Download PDF