Table 2 Methods for cleaning surface oxides on arsenopyrite particles
From: A method for preparation and cleaning of uniformly sized arsenopyrite particles
Method | Particle size | 1stRinse | 2ndRinse | 3rdRinse | Drying environment | Drying duration | Temp. |
|---|---|---|---|---|---|---|---|
1 | 150-250 μm | 1N HCl (5 mins) | DIa water (3 mins) | 50% (v/v) ethanol (1 min) | N2 | 1 h | 25°C |
2 | 150-250 μm | 12N HCl (5 mins) | DI water (3 mins) | 50% (v/v) ethanol (1 min) | N2 | 1 h | 25°C |
3 | 150-250 μm | 50% (v/v) acetic acid (10 mins) | DI water (3 mins) | 50% (v/v) ethanol (1 min) | N2 | 1 h | 25°C |
4 | 150-250 μm | 50% (v/v) acetic acid (20 mins) | DI water (3 mins) | 50% (v/v) ethanol (1 min) | N2 | 1 h | 25°C |