Basic information about this product
Detailed information about the product
| Physical state at 20 °C | Solid | Colour | Dark green powder | ||||
| Odour | Odorless | pH value | 3.1 | ||||
| Melting point/ Freezing point [°C] | 290 °C | Solubility in water [% weight] | Soluble in water | ||||
| Appearance | Dark green powder | Dye content (by spectrophotometry) | Min 60% |
| Transition range (pH 6.8 - 8.0) | Violet Red - Yellow | Solubility (0.1% in 50% ethanol) | Clear solution |
| Absorption maxima (50% ethanol + 2 ml acetic acid) | 539 - 544 nm | Absorptivity (A 1%/1cm; at λmax; in 50% ethanol + 2 ml acetic acid) | Min 900 |
| Loss on drying (at 110°C) | Max 12% |