p-Phenylene diamine; 1,4-diaminobenzene

Keokeo keokeo. Huli ʻulaʻula i ka mālamalama. Huli poni i ka lewa. Ka helu hehee 140 ℃. He 267 ℃ ka helu hoʻolapalapa. Hiki ke sublimated. Hiki ke hoʻoheheʻe ʻia i ka wai anuanu, hiki ke hoʻoheheʻe ʻia i ka ethanol, etera, chloroform a me benzene. Hoʻopili ia me nā ʻakika inorganic e hana i nā paʻakai hiki ke hoʻoheheʻe ʻia i ka wai. Hoʻohana ʻia i ka hana ʻana i nā mea pena azo a me nā sulfur dyes, a me nā mea ʻē aʻe, a hoʻohana ʻia ma ke ʻano he huluhulu (Fur Black D, Ursol D a i ʻole Fur Black D, Ursol D a i ʻole Fur Black D) a me nā mea hoʻomohala. Aia kēia huahana i ka Māhele 3 carcinogens. Hana ʻia ia ma ka hōʻemi ʻana i ka p-nitroaniline.

ʻO keʻano hana

Loaʻa iā ia ma ka hoʻohaʻahaʻa ʻana i ka p-nitroaniline me ka pauka hao i loko o ka medium acidic. E hoʻokomo i ka pauka hao i loko o ka waika hydrochloric, e wela iā 90 ° C, a hoʻohui i ka p-nitroaniline i ka wā e hoʻoulu ai. Ma hope o ka pau ʻana o ka hoʻohui ʻana, e hana ma 95-100°C no 0.5 mau hola, a laila e hoʻohui i ka waika hydrochloric concentrated dropwise no ka hoʻopau ʻana i ka hopena hōʻemi Chemicalbook. Ma hope o ka hoʻoluʻu ʻana, e hoʻokaʻawale me ka solution sodium carbonate i ka pH 7-8, e hoʻolapalapa a kānana i ka wā wela, a holoi i ka keke kānana me ka wai wela. E hoʻohui i ka kānana a me ka wai holoi, hoʻokaʻawale ma lalo o ke kaomi hoʻohaʻahaʻa, crystallize ma ka hoʻoluʻu ʻana a i ʻole ka distill ma lalo o ke kaomi hoʻemi e loaʻa ai ka p-phenylenediamine me ka hua o 95%.

Nā waiwai kemika

inoa Pākē: p-Phenylenediamine
inoa haole: p-Phenylenediamine
Huina kemika: C6H8N2
Kaumaha molekula: 108.14
Helu helu CAS: 106-50-3
Ka helu hehee: 139 ℃
hiʻohiʻona: Keʻokeʻo a me nā kristal lavender

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