| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| sodium nitroprusside iron oxidation state | 1.18 | 0.5 | 1633 | 19 | 41 |
| sodium | 0.2 | 0.9 | 6512 | 45 | 6 |
| nitroprusside | 1.14 | 0.4 | 945 | 20 | 13 |
| iron | 1.43 | 0.2 | 9505 | 11 | 4 |
| oxidation | 1.49 | 0.6 | 509 | 82 | 9 |
| state | 1.41 | 0.4 | 9141 | 86 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| sodium nitroprusside iron oxidation state | 0.93 | 0.5 | 3842 | 94 |
