Definition of saltpetre in English:
Another term for potassium nitrate.
- Glauber created a mixture of saltpeter, lime, phosphoric acid, nitrogen and potash which was the first completely mineral fertilizer.
- The leachate was collected and then chemically converted to true saltpeter, potassium nitrate, by mixing it with a solution of potash.
- The salt most used is common salt, sodium chloride, but saltpetre (which consists of potassium nitrate and sodium nitrate) has similar effects.
Definition of saltpetre in:
- US English dictionary