p-I-Phenylene diamine1,4-diaminobenzene

Ikristale emhlophe. Ijika ibe bomvu xa ikhanyiswe. Ijika ibe mfusa emoyeni. Iqondo lokunyibilika yi-140℃. Iqondo lokubila yi-267℃. Inganyibilikiswa kancinci emanzini abandayo, inyibilika kwi-ethanol, i-ether, i-chloroform kunye ne-benzene. Isabela kwii-asidi ezingaphiliyo ukwenza iityuwa ezinyibilika lula emanzini. Isetyenziswa ekwenzeni iidayi ze-azo kunye needayi zesulfure, njl., kwaye isetyenziswa njengedayi zoboya (i-Fur Black D, i-Ursol D okanye i-Fur Black D, i-Ursol D okanye i-Fur Black D) kunye neearhente eziphuhlisayo. Le mveliso ikwiCandelo lesi-3 lee-carcinogens. Yenziwa ngokunciphisa i-p-nitroaniline.

Indlela yemveliso

Ifunyanwa ngokunciphisa i-p-nitroaniline kunye nomgubo wesinyithi kwindawo ene-asidi. Faka umgubo wesinyithi kwi-hydrochloric acid, uyifudumale ukuya kuma-90°C, uze wongeze i-p-nitroaniline ngelixa uvuselela. Emva kokuba ukongeza kugqityiwe, sabela kwi-95-100°C kangangeeyure eziyi-0.5, uze wongeze i-hydrochloric acid egxininisiweyo ukuze ugqibezele impendulo yokunciphisa iChemicalbook. Emva kokuba ipholile, yinciphise ngesisombululo se-sodium carbonate esigcweleyo ukuya kwi-pH 7-8, uyibilise kwaye uyihluze ngelixa ishushu, uze uhlambe ikhekhe lesihluzo ngamanzi ashushu. Hlanganisa i-filtrate kunye nolwelo lokuhlamba, gxila phantsi koxinzelelo oluncitshisiweyo, yenza i-crystallize ngokuyipholisa okanye uyinyibilikise phantsi koxinzelelo oluncitshisiweyo ukuze ufumane i-p-phenylenediamine enesivuno se-95%.

Iimpawu zekhemikhali

Igama lesiTshayina: p-Phenylenediamine
Igama langaphandle: p-Phenylenediamine
Ifomula yekhemikhali: C6H8N2
Ubunzima beMolekyuli: 108.14
Inombolo yobhaliso lwe-CAS: 106-50-3
Iqondo lokunyibilika: 139 ℃
inkangeleko: Iikristale ezimhlophe ukuya kwi-lavender

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