| Clue | Source | Date |
|---|---|---|
| Assistant hiding unknown chemical compound (5) | The Sun Two Speed | 09 Feb 2026 |
| Assistant packs unknown salt | ||
| Class of organic compounds | ||
| Anion often used as the propellant in car air bags | The Guardian Weekend | 27 Nov 2021 |
| Nitrogen-based compound | ||
| Sodium __: salt used in airbag systems | ||
| Sodium __: salt used in airbag systems | ||
| Nitrogen-based compound | ||
| Nitrogen-based compound | ||
| Nitrogen compound | ||
| Chem. compound | ||
| Chemical compound |