What Are Some Natural Sources of Potassium Nitrate?
Also known as saltpeter, potassium nitrate is a white crystallized compound composed of potassium, nitrogen and oxygen. Most commonly used in fireworks, matches and fertilizer, its medical applications include diuretics to reduce high blood pressure. Although typically produced synthetically, mining continues of the natural mineral, which has significant commercial value. History and Use The use of potassium nitrate goes back to the early Romans and Greeks, who used saltpeter to fertilize their plants. In the third century B.C., the Chinese learned that a mixture of charcoal, sulfur and potassium nitrate could create an explosive powder. Since the Middle Ages, it has played a role in preserving meat and tanning hides, as well as glass production and metalworking. Modern uses include gunpowder, food preservatives, various crafts and to lessen angina pain in heart patients. Formation Potassium nitrate forms naturally in warm climates. Bacteria from the decomposition of feces, urine and p
