Physical Properties
| Physical state at 20 °C | Solid | Colour | Brownish red |
| Density [g/cm3] | 1.018 g/cm3 |
Packings
500g
100g
25g
Safety Information and Hazard Symbols
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H319
Precaution Statement: P305 + P351 + P338
Signal Word: Warning
Hazardous Statement: H319
Precaution Statement: P305 + P351 + P338
Specifications
| Appearance | Brownish red fine powder |
| Absorption | maxima 515 – 518 nm |
| Dye content (by spectrophotometry) | Min 90% |
| Solubility (0.1% in water) | Clear solution |
| Absorptivity (A 1%/1cm; at λmax; in water) | 1200 – 1400 |
| Loss on drying (at 110°C) | Max 8% |
| Copper (Cu) | Max 0.005% |
| Iron (Fe) | Max 0.005% |
| Nickel (Ni) | Max 0.005% |
| Lead (Pb) | Max 0.005% |
| Suitability (for microscopy) | Passes test |
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