m-toluic acidiyikristalu emhlophe noma ephuzi, cishe ayincibiliki emanzini, iyancibilika kancane emanzini abilayo, inyibilika ku-ethanol, ether. Futhi ifomula yamangqamuzana C8H8O2 kanye nenombolo ye-CAS 99-04-7. Isetshenziswa kakhulu ezimbonini ezahlukahlukene ngezinhloso ezahlukahlukene. Kulesi sihloko, sizohlola izakhiwo, ukusetshenziswa, kanye nokuncibilika kwe-m-toluic acid.
Izici ze-m-toluic acid:
m-toluic acidiyiphunga elincane, eliqinile elicwebezelayo elimhlophe elinephuzu lokuncibilika elingu-105-107°C. Incibilika kancane emanzini, futhi inyibilika kuzincibilikisi zemvelo njengotshwala, benzene, ne-ether. Isakhiwo samakhemikhali se-m-toluic acid sihlanganisa iringi ye-benzene eneqembu le-carboxyl -COOH elinamathiselwe kwendandatho endaweni ye-meta. Lokhu kumiswa kwesakhiwo kunikeza i-m-toluic acid izakhiwo ezihlukene kanye nokusetshenziswa.
Ukusetshenziswa kwe-m-toluic acid:
m-toluic acidiyikhemikhali ebalulekile emaphakathi esetshenziswa ezimbonini ezahlukahlukene, okuhlanganisa ezemithi, amapulasitiki, nodayi. Isetshenziswa kakhulu ekukhiqizweni kwe-metolachlor, isibulala-zinambuzane esikhethiwe esisetshenziselwa ukulawula ukhula emmbila nakubhontshisi wesoya. I-m-toluic acid idlala indima ebalulekile ekwakhiweni kwe-metolachlor, efaka ukusabela kwe-m-toluic acid ne-thionyl chloride ukuze kwakheke okuphakathi okuphinde kucutshungulwe ukuze kwakhe umkhiqizo wokugcina.
Okunye ukusetshenziswa kwe-m-toluic acid ukukhiqizwa kwama-polymers afana ne-polyamides nama-polyester resins. Lawa ma-polymer asetshenziswa ekwenzeni imikhiqizo ehlukahlukene njengezindwangu, amapulasitiki, nezinamatheliso. I-m-toluic acid iyingxenye eyinhloko ekuhlanganisweni kwalawa ma-polymers, lapho isebenza njenge-monomer ehlangana namanye ama-molecule ukuze akhe iketango le-polymer.
Ukuncibilika kwe-m-toluic acid:
m-toluic acidiyancibilika kancane emanzini, okusho ukuthi incibilika emanzini ngokwezinga elilinganiselwe. Ukuncibilika kwe-m-toluic acid emanzini cishe ku-1.1 g/L ekamelweni lokushisa. Lokhu kunyibilika kuthonywa izici ezihlukahlukene ezifana nezinga lokushisa, i-pH, kanye nokuba khona kwezinye izinyibilikisi ku-solvent.
Ukunyibilika okulinganiselwe kwe-m-toluic acid emanzini kungenxa yokuba khona kweqembu le-carboxyl esakhiweni salo. Iqembu le-carboxyl yiqembu elisebenza nge-polar elisebenzisana nama-molecule amanzi ngokusebenzisa i-hydrogen bonding. Nokho, iringi ye-benzene eku-m-toluic acid ayiyona i-nonpolar, okwenza ixoshe ama-molecule amanzi. Ngenxa yalezi zakhiwo ezingqubuzanayo, i-m-toluic acid cas 99-04-7 inokuncibilika okulinganiselwe emanzini.
Isiphetho:
m-toluic acid cas 99-04-7iyikhemikhali ebalulekile ephakathi enezinhlelo zokusebenza ezihlukene zezimboni. I-m-toluic acid cas 99-04-7 isetshenziswa ekuhlanganiseni kwe-metolachlor, i-polyamides, nama-polyester resins. Naphezu kokubaluleka kwayo kulezi zimboni, i-m-toluic acid inokuncibilika okulinganiselwe emanzini. Lesi sakhiwo sibangelwa imvelo engqubuzanayo yamaqembu ayo asebenzayo asezindaweni ezimaphakathi nezingapholi. Kodwa-ke, ukuncibilika okuphansi kwe-m-toluic acid akuthinti ukusetshenziswa kwayo ezimbonini ezisebenzayo.
Isikhathi sokuthumela: Mar-12-2024