Uhlobo luni lwe-solvent?
I-DimethLylformaMide (DMF) iyi-solvent esetshenziswa kabanzi embonini yamakhemikhali. Ukuqonda ukuthi hlobo luni lwe-solvent DMF olubalulekile elungiselele abasebenza ekukhiqizeni amakhemikhali, ucwaningo lwelebhu kanye nemikhakha ehlobene. Kulesi sihloko, sizohlaziya ngokuningiliziwe izakhiwo zamakhemikhali ze-DMF, ukusetshenziswa kwazo kanye nezinhlelo zalo ezinkambeni ezihlukile ukusiza abafundi ukuqondisisa kwale solvent ebalulekile.
Chemistry ye-DMF
Uhlobo luni lwe-solvent? Okokuqala, kufanele siqale kusuka kufomula yalo yamakhemikhali yamakhemikhali.dmf's formular formulas yi-C₃H₇no, futhi ngesakhiwo kuyinto ebonakalayo esikhundleni sokubaleka. Kuyinto uketshezi olungenamibala, olungenalo, olugelezayo olunezinhlanzi ezivuthayo ze-odour.Into ehlukile ye-DMF iyinhlangano yayo ephezulu kakhulu, nge-dielectric ihlala iphakeme njenge-36,7, kanye nesilinganiso esiphakeme se-solvency, esikwenzayo. Ngakho-ke, i-DMF idlala indima ebalulekile njenge-solvent ekuphendukeni okuhlukahlukene kwamakhemikhali.
Ukuguquguquka kwe-DMF
Ukuqonda ukuthi i-DMF enjenge-solvent isiza ukubona izinhlobo zayo ezahlukahlukene zokusetshenziswa emikhakheni ehlukene.dmf isetshenziswa ikakhulukazi njenge-polymer disolver, ukusabela kwamakhemikhali okuphakathi nokuhlanza i-solvent. Isibonelo, ekukhiqizweni kwemicu namapulasitiki, i-DMF yi-solvent enhle kakhulu ye-polyurethane ne-polyvinyl chloride; Embonini yezemithi, kusetshenziswa kabanzi njengendlela yokuphendula ye-organic synthesis, ikakhulukazi ukulungiswa kwezinto ezisebenzayo. Ezindaweni zokucwalela amakhemikhali, i-DMF ivame ukusetshenziselwa ukuncibilikisa izakhi ezahlukahlukene ze-polar, ukusiza abacwaningi ukuthi bafeze imisebenzi eqondile yokuphendula amakhemikhali.
Izinzuzo ze-DMF kuzinhlelo ezikhethekile
Kwezinye izinhlelo zokusebenza ezikhethekile, iqhaza le-DMF livelele kakhulu. Isibonelo, i-DMF isetshenziswa kabanzi ku-Electrochemistry, lapho i-dielectric yayo ephakeme kakhulu ihlala i-solvent evamile ekuhlolweni kwe-eledrochemical, futhi iyinhlangano yokuhlanza ebalulekile, ikakhulukazi yokuhlanza izinqubo ezidinga ukuhlanza imishini ye-polar, njengokuhlanzwa kwemishini ye-elekthronikhi. Ukuqonda okwenziwe yi-DMF okungasiza ekukhetheni indlela yokuhlanza efanelekile futhi kuthuthukise ukusebenza kahle komsebenzi.
Ukuphepha kanye nokukhathazeka kwemvelo kwe-DMF
Yize i-DMF inezinhlobonhlobo zezicelo, kepha ukuphepha kwayo kanye nokuvikelwa kwemvelo akufanele kunganakwa. I-DMF inezinga elithile lobuthi, ukuvezwa kwesikhathi eside kungadala ukulimala kwesibindi, ukusetshenziswa kwenqubo kufanele kuthathe izinyathelo ezifanele zokuphepha, njengokugqoka amagilavu ​​okuvikela, imaski, ukuqinisekisa ukuthi indawo yokusebenza ingena umoya kahle. Ukulahlwa kukadoti kwe-DMF nakho kuyinkinga ebalulekile, ukuphathwa kwemfucuza okunengqondo kuyisihluthulelo sokwehlisa ukungcoliswa kwemvelo.
Ukugcina
I-DMF iyi-solvent ebaluleke kakhulu futhi esetshenziswe kabanzi. Ukuqonda okwenziwe yi-DMF akunakusiza kuphela ochwepheshe ukuze bakhethe kangcono futhi basebenzise i-solvent, kepha futhi bathuthukisa ukuphepha nokusebenza kahle ekusebenzeni kwangempela. Ngokuthuthuka okuqhubekayo kobuchwepheshe bamakhemikhali, isidingo nokusetshenziswa kwe-DMF kuzokhula futhi.