I-Ophthalic Acid
Ifomula Yesakhiwo
Igama: Ophthalic acid
Elinye igama: i-2-methyl benzoic acid;I-O-toluene acid
Ifomula yemolekyuli: C8H8O2
Isisindo se-molecule: 136.15
Uhlelo Lokubala izinombolo
Inombolo ye-CAS: 118-90-1
I-EINECS: 204-284-9
Inombolo yepholisi: 29163900
Idatha Yomzimba
Ukubukeka: amakristalu eprismatic amhlophe avuthayo noma amakristalu enaliti.
Okuqukethwe:≥99.0% (i-chromatography ewuketshezi)
Iphuzu elincibilikayo: 103°C
Indawo yokubilisa: 258-259°C(okhanyisiwe)
Ukuminyana: 1.062 g/mL kokungu-25°C(okhanyisiwe)
Inkomba ye-refractive: 1.512
Iphuzu elikhanyayo: 148°C
Ukunyibilika: Incibilika kancane emanzini, incibilika kalula ku-ethanol, i-ether ne-chloroform.
Indlela Yokukhiqiza
1. Itholwe yi-catalytic oxidation ye-o-xylene.Ukusebenzisa i-o-xylene njengento eluhlaza kanye ne-cobalt naphthenate njenge-catalyst, ekushiseni kwe-120 ° C nokucindezela kwe-0.245 MPa, i-o-xylene ingena ngokuqhubekayo embhoshongweni we-oxidation we-air oxidation, futhi uketshezi lwe-oxidation lungena embhoshongweni wokuhlubula we-Chemicalbook. ukugxilisa ingqondo, icrystallization, kanye ne-centrifugation.Thola umkhiqizo ophelile.Utshwala kamama buyagaywa ukuze kubuyiswe i-o-xylene nengxenye ye-o-toluic acid, bese bukhipha okusele.Isivuno saba ngu-74%.Ithani ngalinye lomkhiqizo lidla i-1,300 kg ye-o-xylene (95%).
2. Indlela yokulungiselela ukuthi i-o-xylene ihlale i-oxidized emoyeni lapho kukhona i-cobalt naphthenate catalyst ekushiseni kokusabela kwe-120-125 ° C kanye nokucindezela kwe-196-392 kPa embhoshongweni we-oxidation ukuze uthole okuphelile. umkhiqizo.
Ukusetshenziswa komkhiqizo
Ukusetshenziswa kusetshenziswa ikakhulukazi ekuhlanganiseni izibulala-zinambuzane, imithi kanye nezinto zokusetshenziswa zamakhemikhali emvelo.Njengamanje, yiyona nto esetshenziswa kakhulu ekukhiqizeni ama-herbicides.Isebenzisa i-o-methylbenzoic acid i-fungicide pyrrolidone, i-fenoxystrobin, i-trifloxystrobin kanye ne-benzyl yokubulala ukhula I-intermediate ye-sulfuron-methyl ingasetshenziswa njenge-organic synthesis intermediates efana ne-pesticide bactericide phosphoramide, i-perfume, i-vinyl chloride polymerization initiator I-Chemical coloring initiator MBPO, umthuthukisi wefilimu nokunye.
