m-toluic acidyikristale emhlophe okanye emthubi, phantse ayinyibiliki emanzini, inyibilika kancinane emanzini abilayo, inyibilika kwi-ethanol, ether. Kwaye ifomula ye-molecular C8H8O2 kunye nenombolo ye-CAS 99-04-7. Isetyenziswa ngokuqhelekileyo kumashishini ahlukeneyo ngeenjongo ezahlukeneyo. Kweli nqaku, siza kuphonononga iipropati, ukusetyenziswa, kunye nokunyibilika kwe-m-toluic acid.
Iimpawu ze-m-toluic acid:
m-toluic acidlivumba elimnandi, elimhlophe njengekristale eliqinileyo elinendawo yokunyibilika eyi-105-107°C. Iyanyibilika kancinane emanzini, kwaye iyanyibilika kwizinyibilikisi zendalo ezifana notywala, benzene, kunye ne-ether. Ukwakhiwa kweekhemikhali ze-m-toluic acid kubandakanya i-benzene ring kunye neqela le-carboxyl -COOH eqhotyoshelwe kwindandatho kwindawo ye-meta. Olu lungelelwaniso lwesakhiwo lunika i-m-toluic acid iipropati ezahlukeneyo kunye nokusetyenziswa.
Ukusetyenziswa kwe-m-toluic acid:
m-toluic acidngumchiza obalulekileyo ophakathi osetyenziswa kumashishini ahlukeneyo, kuquka amayeza, iiplastiki, kunye nedayi. Isetyenziswa kakhulu kwimveliso ye-metolachlor, iyeza lokutshabalalisa ukhula elikhethiweyo elisetyenziselwa ukulawula ukhula kumbona kunye neembotyi zesoya. Iasidi ye-m-toluic idlala indima ebalulekileyo ekudibaneni kwe-metolachlor, ebandakanya ukusabela kwe-m-toluic acid kunye ne-thionyl chloride ukwenza isiphakathi esisetyenzwa ngakumbi ukwenza imveliso yokugqibela.
Olunye usetyenziso lwe-m-toluic acid kukuveliswa kweepolymers ezifana ne-polyamides kunye ne-polyester resins. Ezi polymers zisetyenziswa ekwenzeni iimveliso ezahlukeneyo ezifana nelaphu, iplastiki kunye nezinto ezincamathelayo. i-asidi ye-m-toluic yinxalenye ephambili ekudityanisweni kwezi polima, apho isebenza njenge-monomer edibanisa nezinye iimolekyuli ukwenza ikhonkco le-polymer.
Ukunyibilika kwe-m-toluic acid:
m-toluic acidiyanyibilika kancinane emanzini, nto leyo ethetha ukuba inyibilika kancinci emanzini. I-solubility ye-m-toluic acid emanzini malunga ne-1.1 g / L kwiqondo lokushisa. Oku kunyibilika kuphenjelelwa zizinto ezahlukeneyo ezifana nobushushu, i-pH, kunye nobukho bezinye izinyibilikisi kwisinyibilikisi.
Ukunyibilika okulinganiselweyo kwe-m-toluic acid emanzini kungenxa yobukho beqela le-carboxyl kwisakhiwo sayo. Iqela le-carboxyl liqela elisebenzayo le-polar elisebenzisana neamolekyu zamanzi ngokusebenzisa i-hydrogen bonding. Nangona kunjalo, iringi ye-benzene ekwi-m-toluic acid ayinapolar, nto leyo eyenza ukuba igxothe iimolekyuli zamanzi. Ngenxa yezi zakhiwo eziphikisanayo, i-m-toluic acid cas 99-04-7 ine-solubility encinci emanzini.
Isiphelo:
m-toluic acid cas 99-04-7yikhemikhali ebalulekileyo ephakathi kunye nezicelo ezahlukeneyo zamashishini. I-m-toluic acid cas 99-04-7 isetyenziswe kwi-synthesis ye-metolachlor, i-polyamides, kunye ne-polyester resins. Ngaphandle kokubaluleka kwayo kula mashishini, i-m-toluic acid inokunyibilika okulinganiselweyo emanzini. Le propati ngenxa yendalo ephikisanayo yamaqela ayo asebenzayo kwi-polar kunye ne-nonpolar. Nangona kunjalo, i-solubility ephantsi ye-m-toluic acid ayichaphazeli ukusetyenziswa kwayo kumashishini asebenzayo.
Ixesha lokuposa: Mar-12-2024