Synonym: tannin, chinese
tannin
 Properties:Light
yellow to light brown power with special smell,astringent, soluble
in 1-share water or ethanol, soluble in acetone, insoluble in
chloroform or aether.
Use:Gallotannin
can be made into many kinds of fine chemical products,widely
used in germanium extraction, rust removal of metal, mud conditioner
of petroleum drilling and materials in pharmaceutical industry.
Main technical index:
No. |
Index name/Kind |
Industrial tannic acid |
1 |
Tannin
% ≥ |
81 |
2 |
Insoluble
substance % ≤ |
0.6 |
3 |
Loss on
drying % ≤ |
9 |
4 |
Total colors
≤ |
2 |
The above products are packed in plastic woven bag, NW: 25K/bag. |
