Trial | Regent used | Volume Ratio (ml) | Temp (˚C) | Digestion Time (hr) | Observation |
1 | HNO3:HClO4 | 4:8 | 200 | 4:25 | Clear Light yellow |
2 | HNO3:HCLO4 | 5:2 | 210 | 4:35 | Deep yellow with suspension |
3 | HNO3:HClO4 | 3:2 | 210 | 3:05 | Deep Yellow |
4 | HNO3:H2O2 | 10:1 | 210 | 3:15 | Clear yellow |
5 | HNO3:HClO4 | 4:8 | 240 | 4:00 | Clear Colorless |
6 | HNO3:HClO4 | 5:8 | 240 | 4:10 | Clear Light yellow |
7 | HNO3:HClO4:H2O2 | 3:2:1.5 | 240 | 4:00 | Yellow |
8 | HNO3:HClO4:H2O2 | 3:2:1 | 240 | 4:35 | Clear light yellow |
9 | HNO3:HClO4 | 5:1 | 300 | 3:00 | Clear & colorless (optimized) |
10 | HNO3:HClO4 | 3:2 | 300 | 3:10 | Cloudy suspension |