Identity
Classification
- Categories
- Indicators primary
Technical Data
Properties
| Property | Value | Unit |
|---|---|---|
| Physical state at 20 °C | Solid | — |
| Colour | White to buff | — |
| Melting point/ Freezing point [°C] | 225 °C | °C |
| Solubility in water [% weight] | Slightly soluble in water | — |
These are recorded catalogue property values. Product specification limits, where available, are listed under Specifications.
Specifications
| Parameter | Specification | Unit | Method |
|---|---|---|---|
| Appearance | Yellow to Tan Coloured Powder | — | — |
| Sensitivity | Passes test | — | — |
| Dye content (by spectrophotometry) | Min 95 % | % | — |
| Identity | Passes test | — | IR |
| pH 3.8-5.4 | Yellow to blue | — | — |
| Appearance of solution | Conforms | — | — |
| Absorption maxima (0.003% Methanol) | 418 - 428 nm | nm | — |
| Molar Absorptivity at lambda max | Min 17000 | — | — |
| Loss on drying (110 °C) | Max 3 % | % | — |
| Transition range (according to ACS) | Passes test | — | — |
Packaging
| Pack size | SKU |
|---|---|
| 5 g | RA000847-PK-5G |
| 25 g | RA000847-PK-25G |