Congo Red
About This Item
| Product Name | Congo Red |
| Product Code | 330709 |
| Appearance | Brownish red powder |
| Formula | C₃₂H₂₂N₆Na₂O₆S₂ |
| EC Index-No. | 611-027-00-8 |
| EC-No. | 209-358-4 |
| CAS-No. | 573-58-0 |
| Molecular Weight | 696.65 |
| Grade | for microscopy |
Specification
| Colour | Brownish red |
| Odour | Odourless |
| Melting point | 360 °C |
| Flammability | Non flammable |
| pH | 6.7 at 20 °C |
| pH solution concentration | 1% |
| Solubility | Water: 25 g/l at 20 °C – Soluble in water |
| Vapour pressure | < 0.01 hPa |
| Transition range at pH 3.0 to pH 5.2 | Violet to orange red |
| Sensitivity test | Passes test |
| Loss on drying (at 110°C) | Max 5.0% |
Reviews
There are no reviews yet.