| without any excess | 3 | other |
| for sodium phosphate buffer | 2 | purpose |
| acid → form → salt | 14 |
| acid → produce → salt | 10 |
| acid → be → salt | 3 |
| negative | neutral | positive |
| 0.099 | 0.837 | 0.064 |
| Raw frequency | 27 |
| Normalized frequency | 0.519 |
| Modifier score | 0.500 |
| Perplexity | 214.224 |