Tannic Acid AR
Confirming to BP specification
Gallotannin, Tannin
Product Code. |
02616 |
Grade |
|
Purity |
CAS No. |
1401-55-4 | |
Molecular Formula |
C76H52O46 |
Molecular Weight |
1701.22 |
H.S.Code |
3201.90900 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
Light brown |
Odour |
Faint odour |
| Melting point/ Freezing point [°C] |
218 °C |
Decomposition point [°C] |
200 °C |
Auto-ignition temperature [°C] |
527 °C |
| Flash point [°C] |
199 °C |
Solubility in water [% weight] |
Soluble in water |
Packaging
Specification
| Appearance | Light brown powder |
| Identity (IR) | Passes test |
| Identification | Passes test |
| Reaction of aqueous solution | Passes test |
| Dextrins, gum, salts, sugars | Passes test |
| Resinous substances | Passes test |
| Heavy metal (as Pb) | Max 0.003% |
| Zinc (Zn) | Max 0.005% |
| Arsenic (As) | Max 0.0003% |
| Loss on drying (at 105°C) | Max 12% |
| Residue on ignition | Max 0.5% |
Safety Information and Hazard Symbols