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

1.Igama lesiNgisi:2,2′-Azobis(2-methylpropionitrile)

2.Izakhiwo zamakhemikhali:

Amakristalu amhlophe wekholomu noma amakristalu amhlophe ayimpuphu.Ayincibiliki emanzini, incibilika kuzincibilikisi eziphilayo njenge-methanol, i-ethanol, i-acetone, i-ether, i-Petroleum ether ne-aniline.

3.Inhloso:

Njengesiqalisi se-polymerization ye-vinyl chloride, i-Vinyl acetate, i-acrylonitrile namanye ama-monomers, kanye ne-ejenti ekhipha amagwebu yenjoloba namapulasitiki, umthamo ngu-10% ~ 20%.Lo mkhiqizo ungasetshenziswa futhi njenge-ejenti elimazayo, imithi ye-chemicalbook yezolimo, kanye ne-intermediate in organic synthesis.Lo mkhiqizo uyinto enobuthi kakhulu.I-Oral LD5017.2-25mg/kg kumagundane ingabangela ubuthi obukhulu kubantu ngenxa yokukhululwa kwe-organic cyanide ngesikhathi sokubola okushisayo.

4.Indlela yokukhiqiza:

I-acetone, i-hydrazine hydrate ne-Sodium cyanide isetshenziswa njengezinto ezingavuthiwe: izinga lokushisa elingenhla le-Condensation lingama-55~60 ℃, isikhathi sokusabela ngu-5h, bese lipholisa libe ngu-25~30 ℃ amahora angu-2.Lapho izinga lokushisa lehla libe ngaphansi kuka-10 ℃, i-chlorine yethulwa futhi ukusabela kwenzeka ngaphansi kuka-20 ℃ ku-Chemicalbook.Isilinganiso sempahla sithi: HCN: acetone: hydrazine=1L: 1.5036kg: 0.415kg.I-acetone cyanohydrin ihlangana ne-hydrazine hydrate, bese i-oxidize nge-liquid chlorine noma i-aminobutyronitrile nge-Sodium hypochlorite.

5.Izinga lokushisa lokuqalisa lomqalisi

I-AIBN iyisiqalisi esihle kakhulu se-Radical.Uma ishiswa kufika ku-70 ° C, izobola futhi ikhulule i-nitrogen futhi ikhiqize i-free radical (CH3) 2CCN.I-radical yamahhala izinzile ngenxa yethonya leqembu le-cyano.Ingasabela ngenye i-organic substrate futhi iphinde ikhiqize kabusha ibe i-free radical entsha kuyilapho izibhubhisa ngokwayo, ngaleyo ndlela icuphe ukusabela kweChain lama-free radicals (bheka i-Free Radical Reaction).Ngesikhathi esifanayo, ingabuye ihlanganiswe nama-molecule amabili yi-Chemicalbook ukukhiqiza i-tetramethyl Succinonitrile (TMSN) enobuthi obunamandla.Lapho ishisa i-AIBN iye ku-100-107 ° C, iyancibilika futhi ibole ngokushesha, ikhiphe igesi ye-nitrogen nezinhlanganisela eziningana ezinobuthi ze-organic nitrile, ezingase futhi zibangele ukuqhuma nokuvutha.Bola kancane ekamelweni lokushisa futhi ugcine ngaphansi kuka-10 ° C. Gcina kude nezinhlansi nemithombo yokushisa.Ubuthi.I-Metabolized ibe yi-hydrocyanic acid ezicutshini zezilwane ezinjengegazi, isibindi, nobuchopho.

6.Isitoreji nezici zokuthutha:

① Ukuhlukaniswa kobuthi: Ubuthi

② Izici eziyingozi eziqhumayo: zingaqhuma lapho zixutshwa nama-oxidants;Kulula ukwenza i-oxidize, ayizinzi, ibola kakhulu ngaphansi kokushisa, futhi iyaqhuma i-Chemicalbook uma ishiswa nge-heptane ne-acetone.

③ Izici zengozi yokuvutha: Ivutha lapho kukhona amalangabi avulekile, amazinga okushisa aphezulu, nama-oxidizing agents;Ibola amagesi avuthayo lapho evezwe ekushiseni;Ukushiswa kukhiqiza intuthu ye-nitrogen oxide enobuthi

④ Isitoreji kanye nezici zokuhamba: umoya ogcina impahla, ukomisa izinga lokushisa eliphansi;Gcina ngokwehlukana nama-oxidants

⑤ I-ejenti yokucisha: amanzi, isihlabathi esomile, i-carbon dioxide, igwebu, i-ejenti yokucima umlilo engu-1211