ʻO ka maleic anhydride CAS: 108-31-6

kūlohelohe

Kikowaena hoʻoheheʻe 51-56°C (lit.)

Ka paila ʻana 200°C (lit.)

Ka nui o ka ʻiʻo 1.48 Ka nui o ka ʻiʻo 700-800kg/m3

Ka nui o ka mahu 3.4 (vsair)

Kaomi mahu 0.16mmHg (20°C)

ʻIndeks refractive 1.4688 (kuhikuhi)

Wahi lapalapa 218°F

ʻO ka maleic anhydride, i ʻike ʻia hoʻi ʻo "maleic anhydride", ʻo ia ka anhydride o ka maleic acid. He mea paʻa keʻokeʻo a ʻaʻohe kala me ka ʻono ʻawaʻawa i ka mahana o ka lumi, me ke ʻano molekala o C4H2O3. ʻO ke kaumaha molekala 98.06. Loaʻa nā kristal ʻano nila mai ka chloroform a i ʻole ether. Helu heheʻe 60 ℃, kiko paila 82 ℃ (1.Chemicalbook8665kPa), density pili 1.31460. Hiki ke hoʻoheheʻe ʻia i loko o ka acetone, chloroform, ether, hiki ke hoʻoheheʻe iki ʻia i loko o ka petroleum ether. Hoʻoheheʻe ʻia i loko o ka wai e hana i ka cis-butenedioic acid, hoʻoheheʻe ʻia i loko o ka waiʻona e hana i nā esters, a hiki ke hana me nā hui i loaʻa nā pilina pālua i hoʻohui ʻia e hana i ka diene synthesis. ʻAi ʻawahia, hoʻonāukiuki ikaika i nā membrane mucous.

Nā Hoʻohana:

Hoʻohana ʻia ma ke ʻano he mea maka no ka hana ʻana o 1,4-butanediol, γ-butyrolactone, tetrahydrofuran, succinic acid, unsaturated polyester resin, alkyd resin, a pēlā aku. Hoʻohana ʻia nō hoʻi i ka lāʻau lapaʻau a me nā pesticides.

Nā ʻano hana

ʻO nā ʻano hana nui o ka maleic anhydride ka benzene oxidation, butene oxidation a me n-butane oxidation, akā ʻo ka benzene oxidation ke ʻano nui. 1. Ke ʻano hana oxidation Benzene Hoʻopili ʻia ʻo Benzene i ka hopena oxidation ma kahi moena paʻa ma lalo o ka hana a ka mea hoʻouluulu moʻo V-Mo-P e hana i ka maleic anhydride, a ʻo ka mahana o ka hopena he 365°C (hiki i ka moena hopena ke hoʻohana i kahi moena paila, akā kiʻekiʻe ka hoʻohana ʻana o Chemicalbook). A laila hoʻopili ʻia me ka wai e hana i ka maleic acid, a laila hoʻokō ʻia ka dehydration azeotropic a me ka distillation, a loaʻa ka huahana i hoʻopau ʻia ma ke kahakaha ʻana. 2. Ke ʻano hana oxidation Butane (a i ʻole butene) Hoʻopili ʻia ka Butane (a i ʻole butene) e ka ea a i ʻole ka oxygen ma lalo o ka hana a ka mea hoʻouluulu V-Mo e hana i ka maleic anhydride, a ʻo ka mahana o ka hopena he 350-400°C. A laila hoʻopili ʻia e ka wai, hoʻomaloʻo a hoʻomaʻemaʻe ʻia e loaʻa ka huahana i hoʻopau ʻia.

ʻIke pili

ʻEason Peng

MIT-IVY INDUSTRY CO.,LTD

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