Ulwazi oluthile nge-AIBN (CAS: 78-67-1)

1.Igama lesiNgisi:2,2'-azobis (2-methylpropionitile)

2.Izakhiwo Zamakhemikhali:

Amakristalu amhlophe emlonyeni noma amakristalu amhlophe aphuzi. I-insoluble emanzini, incibilika ezinhlafunweni ze-organic njenge-methanol, ethanol, acetone, ether, ether, ether ne-aniline.

I-3.Purse:

Njengomqali we-polymerization we-vinyl chloride, i-vinyl acetate, i-acrylonitrile namanye amamomor, kanye ne-ejenti ye-foaming yenjoloba namapulasitiki, umthamo u-10% ~ 20%. Lo mkhiqizo ungasetshenziswa futhi njenge-ejenti ye-Vulcaning, umuthi wamakhemikhali wezolimo, kanye nomphakathi ekuhlolweni kwe-organic. Lo mkhiqizo uyinto enobuthi kakhulu. I-Oral Ld5017.2-25mg / kg kumagundane ingadala ubuthi obukhulu kubantu ngenxa yokukhishwa kwe-organic cyanide ngesikhathi sokubola okushisayo.

Indlela yokukhiqiza:

I-Acetone, i-hydrazine hydrate kanye ne-sodium cyanide zisetshenziswa njengezinto zokwelashwa ezivuthiwe: izinga lokushisa elingenhla lokuphendula lingu-55 ~ 60, isikhathi sokuphendula singu-5h, bese sipholisa ku-2 ~ 30 ℃ ngo-2h ~ 30 Lapho amazinga okushisa ehla ngaphansi kwe-10 ℃, i-chlorine yethulwa futhi ukusabela kwenzeka ngaphansi kwama-20 ℃ kumakhemikhali. Isilinganiso sezinto ezibonakalayo yile: HCN: Acetone: Hydrazine = 1l: 1.4503kg: 0.415kg. I-Acetone Cyanohydrin iphendula nge-hydrazine hydrate, bese i-oxidizes nge-chlorine ewuketshezi noma i-aninobutyronitritritri ne-sodium hypochlorite.

Izinga lokushisa le-5.Imiation of Initiator

I-AIBN ngumqambi omuhle kakhulu omkhulu. Lapho kufuthelwa cishe ngo-70 ° C, kuzovela futhi kukhiphe i-nitrogen futhi kukhiqize i-2ccn yamahhala (CH3). I-radical yamahhala iyazinza kakhulu ngenxa yethonya le-Cyano Group. Kungasabela ngomunye ama-organic substrate futhi uvule kabusha ku-radical entsha ye-radical ngenkathi uyiqothula, ngaleyo ndlela kubangele ukusabela kwama-radicals mahhala (bheka ukusabela kwamahhala). Ngasikhathi sinye, futhi kungahambisana nama-molecule amabili yi-Chemicalbook ukukhiqiza iTetramethyl Succinonitrile (TMSN) enenhloso eqinile. Lapho kufudumeza i-AIBN kuya ku-100-107 ° C, kuyancibilika futhi kuncibilike ngokushesha, kukhulula igesi ye-nitrogen kanye nezinhlanganisela ezimbalwa ezinobuthi ze-organic nitrile, ezingadala ukuqhuma nokulahla. Kancane kancane ukubola emazingeni okushisa asekamelweni bese ugcina ngaphansi kuka-10 ° C. Gcina kude nezihlangu kanye nemithombo yokushisa. Ubuthi. I-Metabolized ibe yi-hydrocyanic acid ezicubu zezilwane ezinjengegazi, isibindi nobuchopho.

6.Thembisa izici zokuhamba nezokuhamba:

Ukuhlukaniswa kobuthi

Izici ze-HAZA ZOKUXHUMANISA: zingaqhuma lapho zihlanganiswa ne-oxidants; Easy to uku-oxidize, ezingazinzile, ukubola ngokuqinile ngaphansi kokushisa, futhi kuqhume i-chemimebook lapho kufudunyezwa nge-heptane ne-acetone

③ Izici zobungozi ezivuthayo: ezivuthayo phambi kwamalangabi avulekile, amazinga okushisa aphezulu, kanye nama-oxidizing agents; Ukubola amagesi avuthayo lapho kuvezwa ukushisa; Ukushisa kukhiqiza intuthu enobuthi ye-nitrogen oxide

④ Izici zokugcina kanye nezinto zokuhamba: umoya omncane we-warehouse, ukoma okushisa okuphansi; Gcina ngokwahlukana ne-oxidants

Umenzeli we-Agent: Amanzi, isihlabathi esomile, isikhutha, igwebu, i-ejenti yokucima umlilo