11. The polymerization reaction with the amine group eliminates hydrogen chloride . 12. Chlorine is often introduced by adding hydrogen chloride or trichloroethylene to the oxidizing medium. 13. For example, aziridine reacts with NOCl to give ethene, nitrous oxide and hydrogen chloride . 14. It hydrolyses in moist air releasing phosphoric acid and choking fumes of hydrogen chloride . 15. In this reaction hydrogen chloride is generated, which forms a salt with the amine. 16. Also found are carbon monoxide, hydrogen, hydrogen chloride , hydrogen sulfide and smaller amounts helium. 17. Volcanoes also release a high amount of hydrogen chloride and hydrogen fluoride as volatiles. 18. Sebacoyl chloride is corrosive; like all acyl chlorides, it hydrolyzes in water, evolving hydrogen chloride . 19. It decomposes on heating to produce toxic and corrosive fumes including hydrogen chloride and chlorine. 20. Indeed, the dipole moment of hydrogen chloride is just over half that of hydrogen fluoride.