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Ukusabela kwe-Propylene ne-Hypochlorous Acid
Ngokombono wendlela yokusabela, lapho i-propylene isabela ne-asidi e-hypochlorous, i-athomu ye-chlorine ku-asidi e-hypochlorous ibonisa i-electrophilicity futhi ihlasela ukuphela okucebile ngama-electron kwe-propylene double bond, yakha i-chloronium ion intermediate. Lokhu kuhambisana nendlela yokwengeza yama-electrophilic yakudala ku-chemistry yezinto eziphilayo, echazwe ngokuningiliziwe encwadini ethi Basic Organic Chemistry Reaction Mechanisms.
Ukusatshalaliswa komkhiqizo kokusabela phakathi kwe-propylene ne-hypochlorous acid kuthonywa izici ezahlukahlukene, njengokushisa kokusabela. Uma izinga lokushisa lilawulwa cishe ku-25°C, ingxenye yomkhiqizo oyinhloko ihlala izinzile, futhi isivuno se-chlorohydrin singafinyelela cishe ku-60%, njengoba kufingqiwe kusuka kudatha eminingi yokuhlola. Ukukhetha kwalokhu kusabela kubalulekile: ngaphansi kwezimo ezithile zokusabela, imikhiqizo ye-kinetic yakha ngokukhethekile, kuyilapho ingxenye yemikhiqizo ye-thermodynamic ikhula kancane kancane njengoba isikhathi sokusabela siqhubeka. Ukuhlaziywa kwethiyori kwezinguquko ekukhetheni kokusabela kwalokhu kusabela kunikezwa ku-Chemical Reaction Kinetics kanye ne-Thermodynamics. Izinyibilikisi zinomthelela omkhulu ekuphenduleni: kuzinyibilikisi ze-polar ezifana ne-ethanol, izinga lokusabela liyashesha ngoba izinyibilikisi ze-polar zincibilikisa kangcono ama-reactant futhi zikhuthaze ukwakheka kwama-ionic intermediates, okutholakele okuqinisekiswa yizivivinyo eziningi zamakhemikhali. Ekuphenduleni phakathi kwe-propylene ne-hypochlorous acid, ukuhlushwa kwe-hypochlorous acid kunomthelela ovelele enqubweni yokusabela. Ekuhlushweni kwe-hypochlorous acid ephansi, izinga lokusabela lihamba kancane; njengoba ukuhlushwa kwanda, izinga liyashesha, kodwa ukuhlushwa okuphezulu kakhulu kungaholela ekwandeni kokusabela okungekuhle. Ukuhlolwa kubonisa ukuthi ukusabela kusebenza kahle kakhulu ekuhlushweni kwe-hypochlorous acid okungu-0.5 mol/L.