| 盐酸用量 | 2a收率(%) | 2b收率(%) | 2c收率(%) |
| 2.0 eq | 81.33 | 80.23 | 88.64 |
| 2.5 eq | 88.79 | 86.50 | 93.62 |
| 3.0 eq | 86.17 | 85.78 | 91.77 |
| 3.5 eq | 85.64 | 85.32 | 91.14 |