Answer: niters

AnswerCrossword Clue
NITERSTreats with acid.
NITERSSalts used in gunpowder.
NITERSCrystalline salts.
NITERSSaltpeters.
NITERSChemical substances
NITERSExplosive ingredients
NITERSSome strong oxidizers
nitersNITER, a chemical salt, also NITRE
nitersthe white salt used in gunpowder, fertilizer, etc.