Ophthalic Acid
Fomula Yamapangidwe
Dzina: Ophthalic acid
Dzina lina: 2-methyl benzoic acid;O-toluene asidi
Fomula ya maselo: C8H8O2
Molecular kulemera: 136.15
Manambala System
Nambala ya CAS: 118-90-1
EINECS: 204-284-9
HS kodi: 29163900
Physical Data
Maonekedwe: makristasi oyera oyaka moto kapena masingano a singano.
Zamkatimu:≥99.0% (chromatography yamadzi)
Malo osungunuka: 103°C
Malo otentha: 258-259°C (lit.)
Kachulukidwe: 1.062 g/mL pa 25°C (lit.)
Refraactive index: 1.512
Phokoso la Flash: 148°C
Kusungunuka: Kusungunuka pang'ono m'madzi, kusungunuka mosavuta mu ethanol, etha ndi chloroform.
Njira Yopangira
1. Kupezedwa ndi catalytic oxidation ya o-xylene.Kugwiritsa ntchito o-xylene monga zopangira ndi cobalt naphthenate monga chothandizira, pa kutentha kwa 120 ° C ndi kuthamanga kwa 0.245 MPa, o-xylene mosalekeza amalowa munsanja ya okosijeni kuti azitha kutulutsa mpweya, ndipo madzi otsekemera amalowa munsanja ya Chemicalbook. kwa ndende, crystallization, ndi centrifugation.Pezani mankhwala omalizidwa.Mowa wamayi umasungunuka kuti ubwezeretse o-xylene ndi gawo la o-toluic acid, ndiyeno kutulutsa zotsalirazo.Zokolola zinali 74%.Toni iliyonse ya mankhwala imadya makilogalamu 1,300 a o-xylene (95%).
2. Njira yokonzekera ndi yakuti o-xylene imapangidwa mosalekeza ndi mpweya pamaso pa cobalt naphthenate catalyst pa kutentha kwa 120-125 ° C ndi kupanikizika kwa 196-392 kPa mu nsanja ya oxidation kuti mupeze kumaliza. mankhwala.
Kugwiritsa Ntchito Mankhwala
Ntchito makamaka ntchito synthesis wa mankhwala, mankhwala ndi organic mankhwala zopangira.Pakalipano, ndizomwe zimagwiritsidwa ntchito popanga mankhwala ophera udzu.Amagwiritsa ntchito o-methylbenzoic acid ndi fungicide pyrrolidone, fenoxystrobin, trifloxystrobin ndi herbicide benzyl The intermediates wa sulfuron-methyl angagwiritsidwe ntchito ngati organic synthesis intermediates monga mankhwala bactericide phosphoramide, perfume, vinyl chloride polymerization initiator MBPO, wopanga mafilimu ndi zina zotero.
