p-Phenylene diamine; 1,4-diaminobenzene

Khalase e tšoeu. E fetoha rosy khanyeng. E fetoha pherese moyeng. Sebaka se qhibilihang ke 140 ℃. Sebaka se belang 267 ℃. E ka ba sublimated. E qhibiliha hanyenyane metsing a batang, e qhibiliha ka har'a ethanol, ether, chloroform le benzene. E kopana le asiti ea inorganic ho etsa matsoai a qhibilihang habonolo metsing. E sebelisoa ha ho etsoa lidae tsa azo le lidae tsa sebabole, joalo-joalo, 'me e sebelisoa e le lidae tsa boea (Fur Black D, Ursol D kapa Fur Black D, Ursol D kapa Fur Black D) le li-agents tse ntseng li tsoela pele. Sehlahisoa sena ke sa Category 3 carcinogens. E hlahisoa ka ho fokotseha ha p-nitroaniline.

Mokhoa oa tlhahiso

E fumanoa ka ho fokotsa p-nitroaniline ka phofo ea tšepe ka har'a acidic medium. Kenya phofo ea tšepe ka har'a hydrochloric acid, e chese ho 90 ° C, 'me u kenye p-nitroaniline ha u ntse u susumetsa. Ka mor'a hore tlatsetso e phethoe, itšoara ka 95-100 ° C bakeng sa lihora tse 0.5, ebe u eketsa concentrated hydrochloric acid dropwise ho tlatsa karabelo ea phokotso ea Chemicalbook. Ka mor'a hore u pholisoe, fokotsa ka tharollo e tletseng sodium carbonate ho pH 7-8, belisa le sefa ha ho chesa, 'me u hlatsoe kuku ea sefa ka metsi a chesang. Kopanya mokelikeli oa ho hloekisa le oa ho hlatsoa, ​​tsepamisa maikutlo tlas'a khatello e fokotsehileng, kristale ka ho pholile kapa ho senya tlas'a khatello e fokotsehileng ho fumana p-phenylenediamine ka lihlahisoa tsa 95%.

Lintho tsa lik'hemik'hale

Lebitso la Sechaena: p-Phenylenediamine
Lebitso la kantle ho naha: p-Phenylenediamine
Mokhoa oa lik'hemik'hale: C6H8N2
Boima ba molek'hule: 108.14
Nomoro ea ngoliso ea CAS: 106-50-3
Sebaka se qhibilihang: 139 ℃
ponahalo: Bosoeu ho isa ho likristale tsa lavender

Mokhoa oa puisano

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