Particle size (µm) | Bulk density (g/ml) | Repose angle (˚) | Slide angle (˚) |
156.74 ± 12.43 | 0.624 ± | 74.67 ± | 38.99 ± |
69.53 ± 5.78 | 0.677 ± 0.025b | 70.84 ± 1.49b | 35.50 ± 1.79b |
26.35 ± 1.40 | 0.716 ± | 65.80 ± | 30.31 ± |
10.68 ± 0.89 | 0.745 ± 0.009d | 61.41 ± 1.11d | 26.42 ± 1.08d |