From: A method for preparation and cleaning of uniformly sized arsenopyrite particles
1 | Arsenopyrite was crushed in a mortar and pestle. Dry sieved to obtain 150-250 μm size fraction. |
2 | Sonicated in 50% ethanol and supernatant decanted (thrice). |
3 | Dried under N2 at room temperature for 1 hour. |
4 | Rinsed with 12N HCl for 5 minutes, followed by water (3 minutes) and 50% ethanol (1 minute) |
5 | Dried under N2 for 1 hour. |