| Model: | JC-TA |
|---|---|
| Brand: | Jucheng |
| Origin: | Made In China |
| Category: | Chemicals / Organic Chemical Materials / Organic Acid |
| Label: | tannic acid , gallic acid , tannins |
| Price: |
US $8
/ kg
|
| Min. Order: | 100 kg |
| Live Chat: | Last Online:21 Jan, 2010 |
Synonms : Tannic acid, Tannin, Gallotannic acid
Molecular Formula: C76H52O46
Molecular Weight: 1701.18
Application: This product is widely used in smelting if germanium ,manufacuture of Iron ink metal corrosion-resistance,claricant of beer or wine,slime treatment of petroleum drilling and raw material of pharmaceutical industry.
Storage :Tannic acid should be kept in well-closed container
Package: 25kg packed in Polywoven Bags.
Main technical index
|
Item |
Industrial grade |
Grade for dye |
Food grade |
|
Assay≥ |
81.0% |
82.0% |
92.0% 94.0% 97.0% |
|
Insoluble matter≤ |
0.6% |
0.15% |
0.1% |
|
Drying loss≤ |
9.0% |
9.0% |
9.0% |
|
Color of solution≤ |
2.0% |
1.2 |
1.2% |
|
Residue on ignitin≤ |
|
|
1.0% |
|
As≤ |
|
|
3PPm |
|
Pb≤ |
|
|
10 PPm |
|
Heavy metals(Pb) ≤ |
|
|
20 PPm |
|
Gums or Dextrine |
|
|
Passes test |
|
Gallic acid≤ |
|
7% |
|