Ophthalic Acid
Fua Fa'atatau
Igoa: Ophthalic acid
Isi igoa: 2-methyl benzoic acid;O-toluene acid
fua mole: C8H8O2
mamafa mole: 136.15
Fa'ailoga Numera
Numera CAS: 118-90-1
EINECS: 204-284-9
HS code: 29163900
Fa'amatalaga Fa'aletino
Fa'aaliga: tioata pa'epa'e mumu po'o tioata nila.
anotusi:≥99.0% (Cromatography sua)
Mea liusuavai: 103°C
Fa'apuna: 258-259°C(malamalama)
Malosi: 1.062 g/mL ile 25°C(malamalama)
Fa'ailoga fa'atusa: 1.512
Manatu moli: 148°C
Solubility: E solu teisi i le vai, faigofie ona solu ile ethanol, eter ma chloroform.
Metotia Gaosiga
1. Maua e ala i le fa'ama'iina fa'amamafa o le o-xylene.O le faʻaaogaina o le o-xylene o se mea mataʻutia ma le cobalt naphthenate e fai ma faʻamalosi, i le vevela o le 120 ° C ma le mamafa o le 0.245 MPa, o le o-xylene e faʻaauau pea ona ulu atu i le olo faʻamaʻi mo le faʻamaʻiina o le ea, ma o le vai faʻamaʻi e ulufale atu i le Chemicalbook stripping tower. mo le faʻamalosi, tioata, ma centrifugation.Maua le oloa ua mae'a.O le ava malosi e fa'amama e toe maua mai ai le o-xylene ma se vaega o le o-toluic acid, ona fa'amalo ai lea o le toega.O le fua na maua e 74%.O tone ta'itasi o oloa e fa'aaogaina le 1,300 kilokalama o le o-xylene (95%).
2. O le auala sauniuni o le o-xylene o loʻo faʻaauau pea ona faʻamaʻiina i le ea i le i ai o se cobalt naphthenate catalyst i le vevela o le 120-125 ° C ma le mamafa o le 196-392 kPa i se olo faʻamaʻi e maua ai se maeʻa. oloa.
Fa'aogaina o Mea
O fa'aoga e masani ona fa'aogaina i le tu'ufa'atasiga o vaila'au fa'atosina, vaila'au ma vaila'au fa'aola.I le taimi nei, o le mea autu autu mo le gaosiga o herbicides.Fa'aaogaina o le o-methylbenzoic acid o le fungicide pyrrolidone, fenoxystrobin, trifloxystrobin ma le herbicide benzyl E mafai ona fa'aogaina mea vavalo o le sulfuron-methyl e pei o vaila'au fa'ama'i fa'ama'i phosphoramide, mea manogi, vinyl chloride polymerization initiator MBPO, m-cresol Chemicalbook. fai ata tifaga ma isi.
