Waikawa Ophthalic
Tātai Hanganga
Ingoa: Ophthalic acid
Ētahi atu ingoa: 2-methyl benzoic acid;waikawa O-toluene
tātai rāpoi: C8H8O2
Te taumaha ngota: 136.15
Pūnaha Tataunga
Tau CAS: 118-90-1
EINECS: 204-284-9
Waehere HS: 29163900
Raraunga Tinana
Te ahua: nga kiripiri muramura ma, nga tioata ngira ranei.
Ihirangi:≥99.0% (whakarerehiko wai)
Ira whakarewa: 103°C
Ira kohua: 258-259°C(marama)
Kiato: 1.062 g/mL ki te 25°C(marama)
Taupū Reractive: 1.512
Ira hiko: 148°C
Wairewa: He iti te whakarewa ki te wai, he ngawari ki te waiwaro, te etera me te chloroform.
Tikanga Whakaputa
1. Ka riro mai ma te whakapouri o te o-xylene.Ma te whakamahi i te o-xylene hei rauemi mata me te naphthenate cobalt hei whakakorikori, i te pāmahana o te 120°C me te pehanga o te 0.245 MPa, ka uru tonu te o-xylene ki roto i te pourewa oxidation mo te whakapouri o te hau, ka uru te wai whakapouri ki roto ki te whare tangohanga Chemicalbook. mo te kukū, te whātioatanga, me te centrifugation.Tikina te hua kua oti.Ko te waipiro whaea ka marewa hei whakaora i te o-xylene me tetahi wahi o te waikawa o-toluic, katahi ka tukuna te toenga.Ko te hua ko te 74%.Ka pau ia tana hua 1,300 kg o-xylene (95%).
2. Ko te tikanga whakarite ko te o-xylene kei te waikura tonu ki te hau i te aroaro o te whakakorikori naphthenate cobalt i te pāmahana tauhohenga o 120-125°C me te pehanga o 196-392 kPa i roto i te pourewa waikura kia oti ai hua.
Whakamahi Hua
Ka whakamahia te nuinga ki te whakahiatotanga o nga pesticides, nga rongoa me nga rawa matū matū.I tenei wa, koinei te tino rauemi mo te hanga patu patupatu.Ka whakamahia te waikawa o-methylbenzoic ko te pyrrolidone fungicide, fenoxystrobin, trifloxystrobin me te herbicide benzyl Ko nga takawaenga o te sulfuron-methyl ka taea te whakamahi hei takawaenga whakahiato waro penei i te pesticide bactericide phosphoramide, hinu kakara, vinyl chloride polymerization initiator MBPO, m-cresol Chemicalbook. kaiwhakawhanake kiriata me etahi atu.
