Nitrate compound refers to a chemical compound containing the nitrate ion, NO3-. Other synonyms for nitrate compound include nitrates, nitrites, nitrogen oxides, and nitrogen compounds. These compounds are widely used in agriculture as fertilizers, in explosives, and in the production of nylon and other synthetic materials. However, excessive use of nitrogen-containing fertilizers can lead to environmental pollution and health hazards. Some naturally occurring nitrate compounds, such as sodium nitrate, are used in food preservation and seasoning, while others are used in medicine to treat heart diseases and angina. Understanding the properties and uses of nitrate compounds is crucial for their safe handling and effective utilization.