Identity
Classification
- Categories
- Indicators primary
Technical Data
Properties
| Property | Value | Unit |
|---|---|---|
| Physical state at 20 °C | Solid | — |
| Colour | Light brown | — |
| Melting point/ Freezing point [°C] | 219 - 221 °C | °C |
These are recorded catalogue property values. Product specification limits, where available, are listed under Specifications.
Specifications
| Parameter | Specification | Unit |
|---|---|---|
| Appearance | White to light yellow and faint beige to light beige and faint brown to light brown powder | — |
| pH 8.2-9.8 | Colourless to violet red | — |
| Absorption maxima in 0.1 N NaOH | 565 - 569 nm | nm |
| Specific absorptivity A1%/1cm (at λmax) | Min 1500 | — |
| Insoluble matter in ethanol | Passes test | — |
| Loss on drying (135 °C) | Max 0.5 % | % |
| Sulphated ash | Max 0.5 % | % |
Packaging
| Pack size | SKU |
|---|---|
| 5 g | RA001142-PK-5G |
| 25 g | RA001142-PK-25G |
| 500 g | RA001142-PK-500G |