Tannic acid
1)Strict quality contral and best price.
2)be exported to more than 50 countries.
3) On time service
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% |
|
