title: Liquid ammonia and the nitrogen system of compounds.
authors.forename: R G
authors.initials: RG
authors.lastname: ROBERTS
mesh_terms: D000641:Ammonia; D064751:Ammonium Compounds; D009584:Nitrogen; D000644:Quaternary Ammonium Compounds
chemical_list: D064751:Ammonium Compounds; D000644:Quaternary Ammonium Compounds; D000641:Ammonia; D009584:Nitrogen
keywords: AMMONIA AND AMMONIUM; NITROGEN