Ophthalic Acid
Structural Formula
Zita: Ophthalic acid
Rimwe zita: 2-methyl benzoic acid;O-toluene asidhi
Molecular formula: C8H8O2
Molecular uremu: 136.15
Kuverenga System
Nhamba yeCAS: 118-90-1
EINECS: 204-284-9
HS kodhi: 29163900
Physical Data
Chitarisiko: machena anopisa prismatic makristasi kana tsono makristasi.
Zvemukati:≥99.0% (chimvura chromatography)
Kunyungudika: 103°C
Poindi yekubikira: 258-259°C(lit.)
Density: 1.062 g/mL pa25°C(lit.)
Refractive index: 1.512
Flash point: 148°C
Solubility: Inonyungudika zvishoma mumvura, inonyungudika nyore mu ethanol, ether uye chloroform.
Kugadzira Nzira
1. Yakawanikwa ne catalytic oxidation ye o-xylene.Kushandisa o-xylene sechinhu chakasvibiswa uye cobalt naphthenate sechinhu chinokonzera, pakupisa kwe 120 ° C uye kumanikidzwa kwe 0.245 MPa, o-xylene inoramba ichipinda mushongwe ye oxidation ye air oxidation, uye iyo oxidation liquid inopinda muChemicalbook stripping tower. yekufungisisa, crystallization, uye centrifugation.Tora chigadzirwa chapera.Doro raamai rinonyungudutswa kuti ridzore o-xylene uye chikamu che o-toluic acid, uyezve kuburitsa zvakasara.Goho raive 74%.Toni yega yega yechigadzirwa inodya 1,300 kg ye o-xylene (95%).
2. Nzira yekugadzirira ndeyokuti o-xylene inoramba iine oxidized nemhepo muhupo hwecobalt naphthenate catalyst pahutano hwekuita 120-125 ° C uye kumanikidzwa kwe 196-392 kPa mune oxidation tower kuti uwane kupera. chigadzirwa.
Kushandiswa Kwechigadzirwa
Zvishandiso zvinonyanya kushandiswa mukugadzirwa kwemishonga yezvipembenene, mishonga uye organic kemikari raw materials.Parizvino, ndiyo inonyanya kushandiswa pakugadzira mishonga yesora.Inoshandisa o-methylbenzoic acid is the fungicide pyrrolidone, fenoxystrobin, trifloxystrobin uye herbicide benzyl Iyo yepakati yesulfuron-methyl inogona kushandiswa se organic synthesis intermediates senge pesticide bactericide phosphoramide, perfume, vinyl chloride polymerization initiator Mbook PO, Chemical mugadziri wemafirimu uye zvichingodaro.
