Tsebo e 'ngoe ka AIBN (CAS:78-67-1)

1.Lebitso la Senyesemane:2,2′-Azobis(2-methylpropionitrile)

2.Lintho tsa lik'hemik'hale:

Likristale tse tšoeu tsa columnar kapa likristale tse tšoeu tsa phofo.Ha e qhibilihe ka metsing, e qhibilihang ka har'a metsoako ea tlhaho e kang methanol, ethanol, acetone, ether, Petroleum ether le aniline.

3. Sepheo:

Joalo ka sethatho sa polymerization ea vinyl chloride, Vinyl acetate, acrylonitrile le li-monomers tse ling, hammoho le sesebelisoa se phophomang bakeng sa rabara le polasetiki, tekanyetso ke 10% ~ 20%.Sehlahisoa sena se ka boela sa sebelisoa e le moemeli oa vulcanizing, meriana ea libuka tsa lik'hemik'hale tsa temo, le setsi sa mahareng sa organic synthesis.Sehlahisoa sena ke ntho e chefo haholo.Oral LD5017.2-25mg/kg ka litoeba e ka baka chefo e kholo ho batho ka lebaka la ho lokolloa ha organic cyanide nakong ea ho bola ha mocheso.

4.Mokhoa oa tlhahiso:

Acetone, hydrazine hydrate le Sodium cyanide li sebelisoa e le lisebelisoa tse tala: mocheso o ka holimo oa Condensation ke 55 ~ 60 ℃, nako ea ho arabela ke 5h, ebe e pholile ho 25 ~ 30 ℃ bakeng sa 2h.Ha mocheso o theohela ka tlase ho 10 ℃, chlorine e hlahisoa mme karabelo e etsahala ka tlase ho 20 ℃ ho Chemicalbook.Karo-karolelano ea thepa ke: HCN: acetone: hydrazine=1L: 1.5036kg: 0.415kg.Acetone cyanohydrin e sebetsana le hydrazine hydrate, ebe e oxidize ka metsi chlorine kapa aminobutyronitrile ka Sodium hypochlorite.

5.Mocheso oa ho qala oa initiator

AIBN ke moqapi ea khabane haholo oa Radical.Ha e chesa hoo e ka bang 70 ° C, e tla bola ebe e lokolla naetrojene ebe e hlahisa free radical (CH3) 2CCN.Radical ea mahala e batla e tsitsitse ka lebaka la tšusumetso ea sehlopha sa cyano.E ka sebetsana le karolo e 'ngoe ea lintho tse phelang' me ea inchafatsa ho ba radical e ncha ea mahala ha e ntse e ipolaea, kahoo ea tsosa karabelo ea Chain ea li-radicals tsa mahala (sheba Free Radical Reaction).Ka nako e ts'oanang, e ka kopanngoa le limolek'hule tse peli ke Chemicalbook ho hlahisa tetramethyl Succinonitrile (TMSN) e nang le chefo e matla.Ha e futhumatsa AIBN ho 100-107 ° C, e qhibiliha ebe e senyeha ka potlako, e ntša khase ea naetrojene le metsoako e 'maloa e chefo ea nitrile, e ka bakang ho phatloha le ho chesa.Butle-butle senya mocheso oa kamore 'me u boloke ka tlase ho 10 ° C. Boloka hole le litlhase le mehloli ea mocheso.Chefo.E entsoe ka hydrocyanic acid ka har'a lisele tsa liphoofolo tse kang mali, sebete le boko.

6. Litšobotsi tsa polokelo le lipalangoang:

① Sehlopha sa chefo: Chefo

② Litšobotsi tsa kotsi tse phatlohang: e ka phatloha ha e kopantsoe le li-oxidants;Ho bonolo ho oxidize, ho sa tsitsa, ho bola ka matla tlas'a mocheso, 'me ho phatloha Chemicalbook ha e futhumatsoa ka heptane le acetone.

③ Litšobotsi tsa kotsi ea ho cha: E ka cha ka pel'a malakabe a bulehileng, mocheso o phahameng, le li-oxidizing agents;E senya likhase tse tukang ha li pepesehetse mocheso;Ho chesa ho hlahisa mosi o chefo oa nitrogen oxide

④ Litšobotsi tsa polokelo le lipalangoang: moea oa polokelo ea polokelo, ho omisa ka mocheso o tlase;Boloka ka thoko ho li-oxidants

⑤ Moemeli oa ho tima: metsi, lehlabathe le omeletseng, carbon dioxide, foam, 1211 extinguishing agent.