Related Clues:

• Gunpowder ingredient
• Chemical salt
• Fertilizer ingredient
• Compound in fireworks
• Explosive stuff
• Saltpeter
• Compound used in fertilizers
• Fertilizer compound
• Fertilizer component
• Gunpowder component
• Explosives ingredient
• Explosive compound
• Munitions compound
• KNO3
• Compound in gunpowder