| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | acetone | chemical industry | Commonly used as a solvent and for cleaning equipment | 1 |
| 2 | acetone | chemical industry | Commonly used as a solvent and in nail polish remover | 1 |
| 3 | acetyl chloride | Chemical industry in Asia | An important component in the production of pharmaceuticals and agrochemicals | 1 |
| 4 | acetyl chloride | chemical industry | Commonly used in the chemical industry for acylation reactions and as a reagent in organic synthesis. | 1 |
| 5 | acrolein | chemistry industry | Acrolein is an important intermediate in the production of various chemicals and plastics. | 1 |