# | Yield (%) | Volume decrease (%) | Hardness | Abrasion loss (%) | Surface area (m2/g) |
1 | 11 | 68 | 10 | 35 | 650 |
2 | 21 | 49 | 15 | 18 | 540 |
3 | 16 | 55 | 25 | 8 | 640 |
4 | 23 | 58 | 40 | 1.3 | 510 |
5 | 29 | 52 | 55 | 0.9 | 420 |
6 | 28 | 48 | 30 | 1.9 | 490 |
7 | 18 | 69 | 40 | 3.0 | 580 |
8 | 24 | 57 | 40 | 1.9 | 480 |
9 | 24 | 60 | 55 | 0.5 | 490 |