| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | phosphorus trichloride | chemical industry | Phosphorus trichloride is used as a reagent and chlorinating agent in chemical synthesis in the chemical industry. | 3 |
| 2 | phosphorus trichloride | laboratory settings | Phosphorus trichloride is used as a reagent and chlorinating agent in laboratory chemical reactions. | 3 |
| 3 | phosphorus trichloride | chemistry lab | Phosphorus trichloride is used as a reagent in various chemical reactions in the chemistry lab. | 1 |