Saltpeter
Part of speech: noun
Definition: Potassium nitrate.
Nitre
Part of speech: noun
Definition: Native sodium carbonate; natron.
Difference between Saltpeter and Nitre
What is the difference between Saltpeter and Nitre?
Saltpeter as a noun is potassium nitrate. while Nitre as a noun is native sodium carbonate; natron.
We hope you now know whether to use Saltpeter or Nitre in your sentence.