Ophthalic acid
Usoro nhazi
Aha: Ophthalic acid
Aha ọzọ: 2-methyl benzoic acid;O-toluene acid
Usoro ihe omimi: C8H8O2
Arọ molikula: 136.15
Sistemụ ọnụọgụgụ
Nọmba CAS: 118-90-1
EINECS: 204-284-9
Koodu mpaghara:: 29163900
Data anụ ahụ
Ọdịdị: kristal prismatic na-enwu ọkụ ma ọ bụ kristal agịga.
Ọdịnaya:≥99.0% (chromatography mmiri mmiri)
Ebe mgbaze: 103°C
Isi ihe na-esi ísì: 258-259°C (ọkụ)
Njupụta: 1.062 g/ml na 25°C (ọkụ)
Ntụgharị ntụgharị: 1.512
Ebe ọkụ: 148°C
Solubility: Na-agbaze ntakịrị na mmiri, na-agbaze ngwa ngwa na ethanol, ether na chloroform.
Usoro mmepụta
1. Nweta site na catalytic oxidation nke o-xylene.Iji o-xylene dị ka akụrụngwa na cobalt naphthenate dị ka ihe na-akpali akpali, na okpomọkụ nke 120 ° C na nrụgide nke 0.245 MPa, o-xylene nọgidere na-abanye n'ụlọ elu oxidation maka ikuku oxidation, na mmiri mmiri oxidation na-abanye n'ụlọ elu nke Chemicalbook. maka itinye uche, crystallization, na centrifugation.Nweta ngwaahịa emechara.A na-agbaze mmanya nne ka ọ nwetaghachi o-xylene na akụkụ nke o-toluic acid, wee wepụ ihe fọdụrụnụ.Mpụtara ya bụ 74%.Tọn nke ngwaahịa ọ bụla na-eri 1,300 kg nke o-xylene (95%).
2. Usoro nkwadebe bụ na o-xylene na-aga n'ihu na ikuku oxidized na ọnụnọ nke cobalt naphthenate catalyst na mmeghachi omume okpomọkụ nke 120-125 ° C na nrụgide 196-392 kPa na ụlọ elu oxidation iji nweta agwụla. ngwaahịa.
Eji ngwaahịa
A na-ejikarị eme ihe na njikọ nke pesticides, ọgwụ na organic chemical akụrụngwa.Ka ọ dị ugbu a, ọ bụ isi akụrụngwa maka mmepụta nke herbicides.Na-eji o-methylbenzoic acid bụ fungicide pyrrolidone, fenoxystrobin, trifloxystrobin na herbicide benzyl The intermediates nke sulfuron-methyl nwere ike iji dị ka organic synthesis intermediates dị ka pesticide bactericide phosphoramide, senti, vinyl chloride polymerization initiator agba MBPO, m- onye mmepụta ihe nkiri na ihe ndị ọzọ.
