Ukuminyana kwe-dichloromethane: Ukubheka ngokujulile lesi sakhiwo somzimba esibalulekile
I-Methylene chloride (ifomula yamakhemikhali: CH₂Cl₂), eyaziwa nangokuthi i-chloromethane, iwuketshezi olungenambala, olunephunga elimnandi olusetshenziswa kakhulu embonini yamakhemikhali, ikakhulukazi njengesincibilikisi. Ukuqonda impahla ebonakalayo yokuminyana kwe-methylene chloride kubalulekile ekusebenzeni kwayo embonini. Kulesi sihloko, sizohlola izakhiwo zokuminyana ze-methylene chloride ngokuningiliziwe nokuthi le ndawo ikuthinta kanjani ukusetshenziswa kwayo ezinqubweni zamakhemikhali.
Iyini ukuminyana kwe-methylene chloride?
Ukuminyana isilinganiso sesisindo sento kuvolumu yayo futhi iyipharamitha ebalulekile ebonakalayo yokuhlukanisa into. Ukuminyana kwe-methylene chloride cishe ku-1.33 g/cm³ (ku-20°C). Lelivelu lokuminyana libonisa ukuthi i-methylene chloride iminyene kancane kunamanzi (1 g/cm³) ngezinga lokushisa elifanayo, okusho ukuthi inzima kancane kunamanzi. Le ndawo yokuminyana ivumela i-methylene chloride ukuthi ibonise ukuziphatha okuyingqayizivele ezinhlelweni eziningi, isibonelo ezinqubweni zokuhlukanisa uketshezi oluwuketshezi, lapho ngokuvamile itholakala ngaphansi kongqimba lwamanzi.
Umthelela wezinga lokushisa kubuningi be-methylene chloride
Ukuminyana kwe-methylene chloride kuyahlukahluka kuye ngezinga lokushisa. Ngokuvamile, ukuminyana kwe-methylene chloride kuncipha njengoba izinga lokushisa likhuphuka. Lokhu kungenxa yokukhula kwesikhala kwama-molecule ngenxa yamazinga okushisa aphezulu, okunciphisa okuqukethwe kwesisindo ngeyunithi ngayinye. Isibonelo, emazingeni okushisa aphezulu, ukuminyana kwe-methylene chloride kungase kwehle ngaphansi kuka-1.30 g/cm³. Lolu shintsho lubalulekile ezinkambisweni zamakhemikhali lapho ukulawulwa okunembile kwezakhiwo ze-solvent kuyadingeka, njengezinqubo zokukhipha noma zokuhlukanisa, lapho izinguquko ezincane ekuminyana zingathinta kakhulu imiphumela yokusebenza. Ngakho-ke ukuncika kwezinga lokushisa kokuminyana kufanele kucatshangelwe ngokucophelela ekwakhiweni kwezinqubo ezibandakanya i-methylene chloride.
Umthelela wokuminyana kwe-dichloromethane ekusetshenzisweni kwayo
Ukuminyana kwe-Dichloromethane kunomthelela oqondile ezinhlelweni zayo eziningi embonini. Ngenxa yokuminyana kwayo okuphezulu, i-dichloromethane iyisincibilikisi esikahle ekukhishweni koketshezi oluwuketshezi futhi ifaneleka ngokukhethekile ukuhlukaniswa kwezinhlanganisela zezinto eziphilayo ezingahlangani namanzi. Iphinde isebenze njenge-solvent enhle kakhulu ekukhiqizeni amapende, imithi, nemikhiqizo yamakhemikhali. Ukuminyana kwe-methylene chloride kuyenza ibonise izakhiwo eziyingqayizivele ngokuya ngegesi encibilikayo nokucindezela komhwamuko, futhi isetshenziswa kabanzi kuma-agent akhipha amagwebu, ama-stripper kapende nezinye izinhlelo zokusebenza.
Isifinyezo
Impahla ebonakalayo ye-dichloromethane density idlala indima ebalulekile embonini yamakhemikhali. Ukuqonda kanye nolwazi lwale parameter akusizi nje ukwandisa ukusebenza kwezimboni kodwa futhi kuqinisekisa ukuthi imiphumela engcono kakhulu yenqubo ifinyelelwa ezimweni zokushisa ezihlukene. Ngokuhlaziya kuleli phepha, kunenkolelo yokuthi umfundi uzokwazi ukuqonda ngokujulile ukuminyana kwe-dichloromethane nokubaluleka kwayo ekusetshenzisweni kwezimboni.