| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | picric acid | Western countries | Picric acid is a hazardous chemical commonly used in laboratories and military applications and is taught in Western high school chemistry classes. | 4 |
| 2 | picric acid | North America | Picric acid is known for being used as a yellow dye and explosive compound in North America. | 1 |