p-Phenylene diamine; 1,4-diaminobenzene

Ikristale emhlophe. Ijike ibe rozi ekukhanyeni. Ijike ibe mfusa emoyeni. Indawo yokunyibilika yi-140℃. Indawo yokubilisa 267℃. Inokwenziwa i-sublimated. Inyibilika kancinci kumanzi abandayo, inyibilika kwi-ethanol, ether, chloroform kunye nebenzene. Idibana neeasidi ezingaphiliyo ukwenza iityuwa ezinyibilika lula emanzini. Isetyenziswe ekwenzeni idayi ye-azo kunye nedayi yesulfure, njl., kwaye isetyenziswe njengedayi zoboya (i-Fur Black D, i-Ursol D okanye i-Fur Black D, i-Ursol D okanye i-Fur Black D) kunye nee-arhente eziphuhlisayo. Le mveliso yeyeCategory 3 carcinogens. Iveliswa ngokunciphisa i-p-nitroaniline.

Indlela yokuvelisa

Ifunyenwe ngokunciphisa i-p-nitroaniline nge-iron powder kwi-acidic medium. Beka i-iron powder kwi-hydrochloric acid, yitshise kwi-90 ° C, kwaye ungeze i-p-nitroaniline ngelixa uvuselela. Emva kokuba ukongezwa kugqityiwe, sabela kwi-95-100 ° C kwiiyure ze-0.5, uze udibanise i-hydrochloric acid egxininisiweyo ye-dropwise ukugqiba ukusabela kokunciphisa i-Chemicalbook. Emva kokupholisa, nciphisa ngesisombululo esigcweleyo sesodium carbonate kwi-pH 7-8, ubilise kwaye uhluze ngelixa ushushu, kwaye uhlambe ikhekhe lokucoca ngamanzi ashushu. Hlanganisa i-filtrate kunye ne-washing liquid, gxininisa phantsi koxinzelelo oluncitshisiweyo, i-crystallize ngokupholisa okanye i-distill phantsi koxinzelelo oluncitshisiweyo lokufumana i-p-phenylenediamine kunye nesivuno se-95%.

Iimpawu zeMichiza

Igama lesiTshayina: p-Phenylenediamine
Igama langaphandle: p-Phenylenediamine
Ifomula yemichiza: C6H8N2
Ubunzima bemolekyuli: 108.14
Inombolo yobhaliso yeCAS: 106-50-3
Indawo yokunyibilika: 139 ℃
Imbonakalo: Imhlophe ukuya kwiikristale zelavenda

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