p-Phenylene diamine; 1,4-diaminobenzene

Ikristalu elimhlophe. Iphenduka ibe yinhle ekukhanyeni. Iphenduka onsomi emoyeni. Iphoyinti lokuncibilika 140 ℃. Iphoyinti lokubilisa 267 ℃. Kungenziwa i-sublimated. Incibilika kancane emanzini abandayo, i-ethanol, i-ether, i-chloroform ne-benzene. Ihlangana nama-asidi angaphili ukuze kwakhe usawoti oncibilika kalula emanzini. Isetshenziswa ekwenzeni odayi be-azo nodayi besulfure, njll., futhi isetshenziswa njengodayi woboya (i-Fur Black D, i-Ursol D noma i-Fur Black D, i-Ursol D noma i-Fur Black D) kanye nama-ejenti asathuthuka. Lo mkhiqizo ungowe-Category 3 carcinogens. Ikhiqizwa ngokunciphisa i-p-nitroaniline.

Indlela yokukhiqiza

Itholakala ngokunciphisa i-p-nitroaniline nge-iron powder endaweni ene-acidic. Faka i-iron powder ku-hydrochloric acid, uyishise ibe ngu-90 ° C, bese wengeza i-p-nitroaniline ngenkathi uvuselela. Ngemva kokuqedwa kokwengeza, phendula ku-95-100°C amahora angu-0.5, bese wengeza i-hydrochloric acid egxilile ngendlela edonsa phansi ukuze uqedele ukusabela kokunciphisa i-Chemicalbook. Ngemuva kokupholisa, nciphisa ngesisombululo se-sodium carbonate esine-saturated ku-pH 7-8, ubilise futhi uhlunge ngenkathi kushisa, bese ugeza ikhekhe lokuhlunga ngamanzi ashisayo. Hlanganisa i-filtrate noketshezi lokuwasha, gxila ngaphansi kwengcindezi encishisiwe, ucwebeze ngokupholisa noma ukhiphe ngaphansi kwengcindezi encishisiwe ukuze uthole i-p-phenylenediamine ngesivuno esingu-95%.

Izakhiwo zamakhemikhali

Igama lesiShayina: p-Phenylenediamine
Igama langaphandle: p-Phenylenediamine
Ifomula yamakhemikhali: C6H8N2
Isisindo se-molecule: 108.14
Inombolo yokubhalisa ye-CAS: 106-50-3
Indawo encibilikayo: 139 ℃
ukubukeka: Amakristalu amhlophe kuya ku-lavender

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