#nitrate  the radical -NO3 or any compound containing it (such as a salt or ester of nitric acid)
  supertype:  chemical_group__group__radical  (chemistry) two or more atoms bound together as a single unit and forming part of a molecule
  subtype:  calcium_nitrate__calciumnitrate  a deliquescent salt (Ca(NO3)2) that is soluble in water; sometimes used as a source of nitrogen in fertilizers
  subtype:  cellulose_nitrate__cellulosenitrate__nitrocellulose__guncotton__nitrocotton  nitric acid esters; used in lacquers and explosives
     subtype:  pyrocellulose  nitrocellulose containing less nitrogen than guncotton; used in making smokeless powder
     subtype:  pyroxylin__pyroxyline  highly flammable nitrocellulose used in making collodion and plastics and lacquers
  subtype:  sodium_nitrate__soda_niter  (NaNO3) used especially as a fertilizer and explosive
  subtype:  potassium_nitrate__potassiumnitrate__saltpeter__saltpetre__niter__nitre  (KNO3) used especially as a fertilizer and explosive
  subtype:  nitroglycerin__nitroglycerine__trinitroglycerin__glyceryl_trinitrate__glyceryltrinitrate__Nitrospan__Nitrostat  a heavy yellow poisonous oily explosive liquid obtained by nitrating glycerol; used in making explosives and medically as a vasodilator (trade names Nitrospan and Nitrostat)
  subtype:  ammonium_nitrate  used as an explosive and fertilizer and rocket propellant
  subtype:  silver_nitrate  a nitrate used in making photographic emulsions; also used in medicine as a cautery and as a topical anti-infective agent
     subtype:  lunar_caustic__lunarcaustic  silver nitrate fused into sticks and formerly used as a caustic
  subtype:  uranyl_nitrate  a yellow salt obtained by the reaction of uranium salts with nitric acid

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