N-bromosuccimide (nbs)

I. Ikhwalithi yobungcweti, ukukhetha kwamakhemikhali - n - Bromosucciminimide (NBS)

Emkhakheni omkhulu wamakhemikhali, ukuthola i-reagent esebenza kahle futhi ethembekile kuyisihluthulelo socwaningo lwesayensi kanye nokukhiqizwa kwezimboni. N - I-Bromosuccinimide (NBS), ngokusebenza kwayo okuvelele kanye nezicelo ezibanzi, sekuyikhetho lokuqala lochwepheshe abaningi.

II. Izakhiwo ezihlukile, okuholela phambili kwe-Chemistry

- Ukusabela okuqondile kwe-bromination: I-NBS i-ejenti ebalulekile yokufakelwa ekuhlanganiseni kwe-organic. Embonini yezemithi, kuvame ukusetshenziswa njenge-ejenti yokufakelwa ekuhlanganiseni kwama-antibiotic, njengokuhlanganiswa kweBenzyl Cephalosporin. Noma ngabe kuyinto yokufafaza ama-olefin noma i-oxidation of Aldehydes to bromo - ama-acid, ingadlala indima eqondile, ukuhlinzeka ngesiqinisekiso esinamandla sendlela yakho ye-synthesis.

- Umsizi onamandla wokuhlonza utshwala obuyisisekelo, obusekondali, kanye ne-realent yokuhlonza utshwala obuyisisekelo, obusekokondali, kanye ne-NBS, ngezimpawu zalo ezihlukile zokuphendula, uhlinzeka ngokunembile izici ezithembekile zokuhlaziywa kwamakhemikhali.

-Low oxidation deserifure: Ekusabela kwe-oxidation ye-tryptophan, ama-NB angadlala indima ephumelelayo, ngenkathi izinsalela ze-oxidion, izinsalela ze-methorionine zingaphansi. Ngasikhathi sinye, futhi singasetshenziselwa ukuguqulwa kwamaqembu ama-rubasomal thiols, enikeza amathuluzi amasha ocwaningo lwesayensi yempilo.

III. Ukulawulwa kwekhwalithi okuqinile, kuphephile futhi okuthembekile

- Okuphezulu - Izinto zokusetshenziswa kwekhwalithi: Sisebenzisa izinto eziphakeme - zekhwalithi yekhwalithi nezinqubo eziqinile zokukhiqiza ukuqinisekisa ubumsulwa nokuqina kwe-NBS.

- Isitoreji Esiphephile: I-NBS iyazwela umswakama. Sincoma ukugcina esiqandisini ukuze kuqinisekiswe ukuthi ukusebenza kwayo akuthinteki. Ngasikhathi sinye, kufanele kugcinwe ngokwahlukana kusuka ku-aniline, i-dilleckyl sulfide, i-hydrazine hydrate, i-peroxides, kanye nokuhlongozwa ukugwema ukusabela okuyingozi.

- Ukusebenza okuphephile: Ngesikhathi senqubo yokusebenzisa, inhalation noma ukuxhumana nesikhumba kufanele kugwenywe. Ngokuvamile, imisebenzi kufanele yenziwe nge-hood ye-fume ngokusebenza komoya omncane ukuze kuqinisekiswe ukuphepha kokuhlolwa kwakho.

IV. Uhla olubanzi lwezicelo, ukuhlangabezana nezidingo ezihlukile

- Inkambu yezokwelapha: Embonini yezemithi, i-NBS ayisetshenziswa kuphela ekuhlolweni kwemithi elwa namagciwane kepha futhi ingasetshenziselwa ukuhlanganisa izidakamizwa ezifana ne-bromoetonitritritritritritritritricrile, kufaka isandla kwisizathu sempilo yabantu.

- Imboni yezibulala-zinambuzane: Isetshenziselwa ukuhlanganisa ama-pesticides anjenge-thiabendazole, ukuvikela ngempumelelo nokulawula izifo zezitshalo kanye nezinambuzane zezinambuzane kanye nokwenza ngcono ukukhiqizwa kokukhiqizwa kwezinambuzane.

- Ukulondolozwa kwezithelo, i-anticororyision, ne-antifungal: Ingasetshenziswa njengesithelo sokulondolozwa kwezithelo, kanye ne-anticorrosion ne-antifungal ejenti, ukunweba isikhathi sokugcina izithelo nokuqinisekisa ukuphepha kokudla.

Ukukhetha n - I-Bromosucciminide (NBS) kusho ukukhetha i-reagent yamakhemikhali yobuchwepheshe, esebenza kahle futhi ephephile. Ake sisebenzisane ukudala ikusasa elihle emkhakheni wamakhemikhali!