where does saltpeter occur naturally
Saltpeter is the popular name for the chemicals potassium nitrate and sodium nitrate. It is an important component of fertilizers, explosives, food preservatives, propellants and toothpaste for sensitive teeth.A concentrated solution of potassium nitrate speeds up decomposition of vegetable matter such as tree stumps.rdinary saltpeter in the form of potassium nitrate occurs in the sap of plants such as sunflower, common borage, celandine and tobacco. Vegetables such as spinach, celery and cabbage contain significant amounts of potassium nitrate.