p-Phenylene diamine1,4-diaminobenzene

Krustalo woyera. Amasanduka pinki mu kuwala. Amasanduka wofiirira mumlengalenga. Malo osungunuka 140℃. Malo otentha 267℃. Amatha kusungunuka. Amasungunuka pang'ono m'madzi ozizira, amasungunuka mu ethanol, ether, chloroform ndi benzene. Amachitapo kanthu ndi ma inorganic acid kuti apange mchere womwe umasungunuka mosavuta m'madzi. Amagwiritsidwa ntchito popanga utoto wa azo ndi utoto wa sulfure, ndi zina zotero, ndipo amagwiritsidwa ntchito ngati utoto wa ubweya (Fur Black D, Ursol D kapena Fur Black D, Ursol D kapena Fur Black D) ndi zinthu zomwe zimapanga. Chogulitsachi ndi cha gulu lachitatu la carcinogens. Chimapangidwa pochepetsa p-nitroaniline.

Njira yopangira

Imapezeka pochepetsa p-nitroaniline ndi ufa wachitsulo mu acidity medium. Ikani ufa wachitsulo mu hydrochloric acid, itentheni mpaka 90°C, ndikuwonjezera p-nitroaniline mukusakaniza. Mukamaliza kuwonjezera, chitani pa 95-100°C kwa maola 0.5, kenako onjezerani hydrochloric acid yokhazikika kuti mumalize Chemicalbook reduction reaction. Mukazizira, sungani ndi sodium carbonate solution yokwanira pH 7-8, wiritsani ndikusefa ikatentha, ndikutsuka keke yosefa ndi madzi otentha. Sakanizani filtrate ndi madzi ochapira, sungani pansi pa kupanikizika kochepa, sakanizani ndi kuziziritsa kapena kusungunula pansi pa kupsinjika kochepa kuti mupeze p-phenylenediamine yokhala ndi phindu la 95%.

Kapangidwe ka mankhwala

Dzina la Chitchaina: p-Phenylenediamine
Dzina lachilendo: p-Phenylenediamine
Fomula ya mankhwala: C6H8N2
Kulemera kwa maselo: 108.14
Nambala yolembetsa ya CAS: 106-50-3
Malo osungunuka: 139 ℃
Mawonekedwe: Makristalo oyera mpaka a lavenda

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