描述
The nitrate ion is a polyatomic ion. Nitrates are mainly produced for use as fertilizers in agriculture because of their high solubility and biodegradability. The main nitrates are ammonium, sodium, potassium, and calcium salts. Several million kilograms are produced annually for this purpose. [Wikipedia]. Nitrate is found in many foods, some of which are canola, peach, spelt, and loquat.