Olunye ulwazi malunga ne-AIBN (CAS: 78-67-1)

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

2.Iimpawu zeMichiza:

Iikristale ezimhlophe zekholomu okanye iikristale ezimhlophe ze powdery.Ayinyibiliki emanzini, inyibilika kwizinyibilikisi eziphilayo ezifana ne-methanol, i-ethanol, i-acetone, i-ether, i-Petroleum ether kunye ne-aniline.

3. Injongo:

Njengomqalisi we-polymerization yevinyl chloride, iVinyl acetate, i-acrylonitrile kunye nezinye iimonomers, kunye ne-arhente ekhupha ugwebu lwerabha kunye neeplastiki, idosi yi-10% ~ 20%.Le mveliso inokusetyenziswa njenge-agent e-vulcanizing, iyeza le-chemicalbook yezolimo, kunye ne-intermediate in organic synthesis.Le mveliso yinto enetyhefu kakhulu.I-Oral LD5017.2-25mg / kg kwiigundane inokubangela ubuthi obukhulu kubantu ngenxa yokukhululwa kwe-organic cyanide ngexesha lokubola kwe-thermal.

4.Indlela yokuvelisa:

I-acetone, ihydrazine hydrate kunye ne-Sodium cyanide zisetyenziswa njengemathiriyeli ekrwada: lobushushu obungasentla be-Condensation reaction yi-55 ~ 60 ℃, ixesha lokuphendula ngu-5h, kwaye emva koko ukupholisa kwi-25 ~ 30 ℃ nge-2h.Xa ubushushu behla ukuya ngaphantsi kwe-10 ℃, iklorini yaziswa kwaye ukusabela kwenzeka ngaphantsi kwe-20 ℃ kwi-Chemicalbook.Umlinganiselo wezinto eziphathekayo ngu: HCN: i-acetone: ihydrazine=1L: 1.5036kg: 0.415kg.I-acetone cyanohydrin idibana nehydrazine hydrate, kwaye emva koko i-oxidize nge-liquid chlorine okanye i-aminobutyronitrile kunye ne-Sodium hypochlorite.

5.Ubushushu bokuqalisa komqalisi

I-AIBN ngumqalisi obalaseleyo weRadical.Xa ishushu malunga ne-70 ° C, iya kubola kwaye ikhulule i-nitrogen kwaye ivelise i-radical yamahhala (CH3) 2CCN.I-radical yamahhala izinzile ngenxa yempembelelo yeqela le-cyano.Inokusabela kunye nenye i-organic substrate kwaye iphinde ihlaziye ibe yi-radical entsha yasimahla ngelixa izibhubhisa ngokwayo, ngaloo ndlela ibangela ukusabela kweChain yeeradicals zasimahla (jonga i-Free Radical Reaction).Kwangaxeshanye, inokudityaniswa neemolekyuli ezimbini yiChemicalbook ukuvelisa i-tetramethyl Succinonitrile (TMSN) enetyhefu enamandla.Xa ifudumeza i-AIBN ukuya kwi-100-107 ° C, iyanyibilika kwaye ibole ngokukhawuleza, ikhuphe igesi yenitrogen kunye neekhompawundi eziyityhefu zenitrile, ezinokubangela ugqabhuko-dubulo kunye nokuvutha.Ukubola kancinci kwiqondo lokushisa kunye nokugcina ngaphantsi kwe-10 ° C. Gcina kude neentlantsi kunye nemithombo yobushushu.Inetyhefu.I-Metabolized ibe yi-hydrocyanic acid kwizihlunu zezilwanyana ezinjengegazi, isibindi kunye nengqondo.

6.Ugcino kunye neempawu zokuhamba:

① Ulwahlulo lwetyhefu: Ityhefu

② Iimpawu zobungozi obuqhumayo: zinokugqabhuka xa zixutywe nee-oxidants;Kulula ukufakwa kwi-oxidize, ukungazinzi, ukubola ngamandla phantsi kobushushu, kwaye kuqhume i-Chemicalbook xa ishushu nge-heptane kunye ne-acetone.

③ Iimpawu zengozi yokutsha: Inokutsha phambi kwamadangatye avulekileyo, amaqondo obushushu aphezulu, kunye nee-oxidizing agents;Ibolisa iigesi ezinokutsha xa ibekwe kubushushu;Ukutshisa kuvelisa umsi wenitrogen oxide enetyhefu

④ Ugcino kunye neempawu zokuhamba: indawo yokugcina umoya, ukomisa ubushushu obuphantsi;Gcina ngokwahlukileyo kwii-oxidants

⑤ Iarhente yokucima: amanzi, isanti eyomileyo, ikharbon diokside, ugwebu, i-1211 yokucima umlilo.