p-Phenylene diamine; 1,4-diaminobenzene

Farin crystal. Yana juya launin shuɗi a cikin haske. Juyi shuɗi a cikin iska. Matsayin narkewa 140 ℃. Tushen tafasa 267 ℃. Ana iya ƙaddamar da shi. Mai narkewa kadan a cikin ruwan sanyi, mai narkewa a cikin ethanol, ether, chloroform da benzene. Yana amsawa tare da inorganic acid don samar da gishiri masu narkewa cikin sauƙi a cikin ruwa. An yi amfani da shi wajen kera rini na azo da rini na sulfur, da dai sauransu, kuma ana amfani da su azaman dyes na Jawo (Fur Black D, Ursol D ko Fur Black D, Ursol D ko Fur Black D) da wakilai masu tasowa. Wannan samfurin yana cikin nau'in carcinogens na 3. Ana samar da shi ta hanyar rage p-nitroaniline.

Hanyar samarwa

Ana samun shi ta hanyar rage p-nitroaniline tare da foda na ƙarfe a cikin matsakaici na acidic. Saka foda na baƙin ƙarfe a cikin hydrochloric acid, zafi shi zuwa 90 ° C, kuma ƙara p-nitroaniline yayin motsawa. Bayan an gama ƙarawa, mayar da martani a 95-100C na tsawon awanni 0.5, sannan ƙara maida hankali kan hydrochloric acid a juzu'i don kammala aikin rage tasirin sinadarai. Bayan sanyaya, neutralize da cikakken sodium carbonate bayani zuwa pH 7-8, tafasa da kuma tace yayin zafi, da kuma wanke tace cake da ruwan zafi. Haɗa tacewa da ruwa mai wankewa, mai da hankali ƙarƙashin rage matsa lamba, crystallize ta sanyaya ko distill a ƙarƙashin rage matsa lamba don samun p-phenylenediamine tare da yawan amfanin ƙasa na 95%.

Abubuwan sinadaran

Sunan Sinanci: p-Phenylenediamine
Sunan waje: p-Phenylenediamine
Tsarin sinadaran: C6H8N2
Nauyin Kwayoyin: 108.14
Lambar rajista na CAS: 106-50-3
Matsakaicin narkewa: 139 ℃
bayyanar: Fari zuwa lu'ulu'u na lavender

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