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Tannic acid

Product Information

CAS No: 1401-55-4

Molecular formula: C76H52O46



Specification



81% Standard

Items

Standard

Appearance

Light yellow to brown powder

The amount of tannic acid content, %(dry base)

81

Loss of drying, %

9

Water Insoluble %

0.6

Color

2.0

Heavy metal %

0.004

Arsenic mg/kg

3

Lead mg/kg

5


92% Standard

Items

Standard

Appearance

Amorphous light brown powder

The amount of tannic acid content, %(dry base)

92

Odor

Practically odourless

Taste

Neutral /Slight astringent taste

Loss of drying, %

9

Solubility

Very soluble in water, freely soluble in acetone, in alcohol

Residue on Ignition %

1.0

Heavy metal ppm

20

Arsenic ppm

3

Lead ppm

1

Gums, Dextrin test

No turbidity 

Resins test

No turbidity 

Gallic acid %

4.0


Usage

Clarients, mesenchym, crude oil deodorant, fragrance; tannic acid can be used in tanning, ink manufacturing, paper and silk glue, boiler descaling, etc., can also opener, beer and wine , Rubber coagulant, etc.


Package

25kg fiber drum or as per customer request.


Storage

Storage in clean and dry place.

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