AIBN (CAS: 78-67-1)

1.English npe:2,2′-Azobis (2-methylpropionitrile)

2.Cov khoom siv tshuaj:

Dawb columnar siv lead ua los yog dawb hmoov crystals.Insoluble hauv dej, soluble hauv cov kuab tshuaj organic xws li methanol, ethanol, acetone, ether, Petroleum ether thiab aniline.

3. Lub hom phiaj:

Raws li tus thawj coj rau polymerization ntawm vinyl chloride, Vinyl acetate, acrylonitrile thiab lwm yam monomers, nrog rau cov foaming tus neeg sawv cev rau roj hmab thiab yas, qhov ntau npaum li cas yog 10% ~ 20%.Cov khoom no kuj tseem siv tau los ua tus neeg sawv cev vulcanizing, tshuaj ua liaj ua teb chemicalbook, thiab ib qho nruab nrab ntawm cov organic synthesis.Cov khoom no yog ib qho tshuaj lom heev.Qhov ncauj LD5017.2-25mg / kg hauv nas tuaj yeem ua rau muaj kev phom sij loj rau tib neeg vim kev tso tawm cov organic cyanide thaum lub sij hawm thermal decomposition.

4.Production method:

Acetone, hydrazine hydrate thiab Sodium cyanide yog siv los ua cov ntaub ntawv raw: saum toj no Condensation tshuaj tiv thaiv kub yog 55 ~ 60 ℃, lub sij hawm tshuaj tiv thaiv yog 5h, thiab ces txias rau 25 ~ 30 ℃ rau 2h.Thaum qhov kub thiab txias poob qis dua 10 ℃, chlorine tau qhia thiab cov tshuaj tiv thaiv tshwm sim hauv qab 20 ℃ hauv Chemicalbook.Cov khoom sib piv yog: HCN: acetone: hydrazine = 1L: 1.5036kg: 0.415kg.Acetone cyanohydrin reacts nrog hydrazine hydrate, thiab ces oxidizes nrog kua chlorine los yog aminobutyronitrile nrog Sodium hypochlorite.

5.Initiation kub ntawm qhov pib

AIBN yog qhov tshwj xeeb tshaj plaws Radical pib.Thaum rhuab mus txog 70 ° C, nws yuav decompose thiab tso nitrogen thiab tsim dawb radical (CH3) 2CCN.Cov dawb radical kuj tseem ruaj khov vim muaj kev cuam tshuam ntawm cyano pawg.Nws tuaj yeem hnov ​​​​mob nrog lwm cov organic substrate thiab rov tsim dua tshiab rau hauv cov dawb radical tshiab thaum rhuav tshem nws tus kheej, yog li ua rau Chain cov tshuaj tiv thaiv ntawm cov dawb radicals (saib Dawb Radical Reaction ).Nyob rau tib lub sijhawm, nws tseem tuaj yeem ua ke nrog ob lub molecules los ntawm Chemicalbook los tsim tetramethyl Succinonitrile (TMSN) nrog cov tshuaj toxicity.Thaum cua sov AIBN rau 100-107 ° C, nws melts thiab undergoes sai decomposition, tso nitrogen gas thiab ob peb toxic organic nitrile tebchaw, uas kuj yuav ua rau tawg thiab ignition.Maj mam decompose ntawm chav tsev kub thiab khaws cia qis dua 10 ° C. Cia kom deb ntawm qhov hluav taws kub thiab qhov chaw kub.Tshuaj lom.Metabolized rau hauv hydrocyanic acid hauv cov ntaub so ntswg tsiaj xws li ntshav, siab, thiab hlwb.

6. Kev khaws cia thiab kev thauj mus los yam ntxwv:

① Toxicity classification: Poisoning

② Cov yam ntxwv muaj kev phom sij: tuaj yeem tawg thaum sib xyaw nrog oxidants;Yooj yim rau oxidize, tsis ruaj khov, muaj zog decomposes nyob rau hauv tshav kub, thiab explodes Chemicalbook thaum rhuab nrog heptane thiab acetone

③ Flammability tej yam ntxwv: Flammable nyob rau hauv lub xub ntiag ntawm qhib nplaim taws, kub kub, thiab oxidizing agents;Decomposes flammable gases thaum raug tshav kub;Kev kub hnyiab ua rau muaj kuab lom nitrogen oxide pa luam yeeb

④ Cov yam ntxwv ntawm kev khaws cia thiab kev thauj mus los: warehouse qhov cua, ziab kom qhuav;Khaws cais los ntawm oxidants

⑤ Extinguishing agent: dej, xuab zeb qhuav, carbon dioxide, ua npuas ncauj, 1211 extinguishing agent