| Share | Phrase |
|---|
| 34.59% | nonionic [structure] surfactant |
| 24.97% | anionic [physical/chemical] surfactant |
| 10.25% | cationic [physical/chemical] surfactant |
| 7.74% | surfactant in composition |
| 5.76% | surfactant ht |
| 5.68% | surfactant [attribute] useful |
| 3.75% | surfactant property |
| 3.73% | useful [effectiveness] surfactant |
| 1.35% | comprise surfactant [perform operation] |
| 1.14% | employ surfactant [perform operation] |
| 0.57% | use surfactant [perform operation] |
| 0.41% | include surfactant [perform operation] |