Related Clues:
- Gunpowder ingredient
- Chemical compound
- Chemical salt
- Fertilizer ingredient
- Ammonia compound
- Compound in fireworks
- Explosive stuff
- Component used in making plastics and fertilizer
- Organic compound
- Carbamide
- Saltpeter
- Fertilizer compound
- Fertilizer component
- Component used as fertilizer
- Gunpowder component