"146a0a0b-1b42-41a6-b1f7-a27615b006a0" . "HYDROGEN CHLORIDE"^^ . "A toxic, colorless, strongly acidic gas (HCl) that dissolves readily in water\nto form hydrochloric acid. \nIn the troposphere, hydrochloric acid can be produced from the reaction of\nnitric acid or sulfuric acid with sea-salt particles (NaCl). It is also\ninvolved in the formation of ammonium chloride aerosol. HCl is also the most\nabundant form of chlorine in an inorganic compound found in the stratosphere.\nProduced there predominantly from the reaction of Cl atoms with methane and\nmolecular hydrogen, it acts as a temporary, relatively unreactive reservoir\nspecies for chlorine."^^ . .