sentences:  Hydroxylammonium chloride
  
  Hydroxylammonium chloride is the hydrochloric acid salt of hydroxylamine.Hydroxylamine is a biological intermediate in the nitrification (biological oxidation of ammonia with oxygen into nitrite) and in the anammox (biological oxidation of nitrite and ammonium into dinitrogen gas) which are important in the nitrogen cycle in soil and in wastewater treatment plants.