Last seen in:
- The Washington Post Sunday - Mar 20 2022
- L.A. Times Daily - Oct 12 2021
- The Washington Post - Oct 12 2021
- Newsday.com - Jul 25 2021
- Universal - Aug 5 2018
- Newsday.com - Dec 4 2016
- L.A. Times Daily - Jun 16 2015
- Premier Sunday - King Feature Syndicate - Nov 23 2014
- Universal - Oct 27 2014
- Newsday.com - Apr 18 2014
Related Clues:
- Gunpowder ingredient
- White, granular powder
- Chemical compound
- K compound
- Chemical salt
- Saltpeter, for one
- Common cleanser
- Common fertilizer
- Glassmaking ingredient
- Suffocating solution
- Fertilizer ingredient
- Ammonia compound
- Compound in fireworks
- Explosive stuff
- Component used in making plastics and fertilizer