Sodium nitrate is a chemical compound that is commonly used as a food preservative, fertilizer, and in the manufacturing of glass and fireworks. There are many synonyms for sodium nitrate including Chile saltpeter, Peruvian saltpeter, soda niter, nitratine, and cubic niter. These names are derived from the origins and/or properties of the substance. For example, Chile saltpeter comes from Chile where it was originally mined, while cubic niter refers to the crystalline structure of sodium nitrate. While the various names may differ, the properties and uses of sodium nitrate remain consistent, making it an important ingredient in various industries.