2 3 5-trifluoropyridine (CAS# 76469-41-5)
| Amakhodi Engozi | R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba. U-R10 – Uyavutha |
| Incazelo Yokuphepha | S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha. S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu kanye nokuvikela iso/ubuso. S37 – Gqoka amagilavu afanelekile. |
| Ama-ID e-UN | 1993 |
| Ikhodi ye-HS | 29333990 |
| Inothi Lengozi | Okuvuthayo/Ukucasuka |
| I-Hazard Class | 3 |
| Iqembu Lokupakisha | III |
Isingeniso
I-2,3,5-Trifluoropyridine iyinhlanganisela ye-organic ene-chemical formula C5H2F3N. Okulandelayo yincazelo yemvelo yayo, ukusetshenziswa, ukulungiswa kanye nolwazi lokuphepha:
Imvelo:
I-2,3,5-Trifluoropyridine iwuketshezi olungenambala olunephunga elimnandi. Inokuminyana okungu-1.42 g/mL, indawo yokubilisa engu-90-91°C, kanye nephuzu lokuncibilika elingu -47°C. Ine-hydrophobicity eqinile futhi kunzima ukuyincibilika emanzini, kodwa ingancibilika kuma-solvents avamile afana ne-ethanol, i-acetone ne-xylene.
Sebenzisa:
I-2,3,5-Trifluoropyridine isetshenziswa kakhulu emkhakheni we-organic synthesis. Njenge-reagent ye-fluorination ephumelelayo, ingasetshenziswa ekuphenduleni kwe-fluorination, futhi ivame ukusetshenziswa ekuphenduleni kokwethula ama-athomu e-fluorine. Ngaphezu kwalokho, ingasetshenziswa njengendawo ephakathi yokuhlanganiswa kwezidakamizwa, izibulala-zinambuzane nezinye izinhlanganisela eziphilayo.
Indlela Yokulungiselela:
I-2,3,5-Trifluoropyridine inezindlela eziningi zokulungiselela, enye yazo evame ukusetshenziselwa ukuthola ngokuphendula i-2,3, 5-trichloropyridine nge-hydrofluoric acid. Ngesikhathi sokuphendula, i-2,3, i-5-trichloropyridine isabela nge-hydrofluoric acid ku-solvent efanelekile, futhi izinga lokushisa lokuphendula kanye nenani le-pH lilawulwa ukuze ekugcineni lithole i-2,3,5-Trifluoropyridine.
Ulwazi Lokuphepha:
Naka izinyathelo zokuphepha lapho uphatha i-2,3,5-Trifluoropyridine. Kuyinhlanganisela enephunga elimnandi engase ibangele ukucasuka esikhunjeni, emehlweni kanye nesistimu yokuphefumula. Ngakho-ke, gwema ukuthintana ngqo nesikhumba namehlo lapho usebenzisa, futhi uqiniseke ukuthi usebenza endaweni enomoya omuhle. Ngesikhathi sokuphatha nokugcina, kuyadingeka ukuthatha izinyathelo zokuzivikela ezifanele futhi ugweme ukuthintana nama-oxidizing agents kanye nama-acids aqinile ukuvimbela ukusabela okuyingozi.
Ukwengeza, ukuze usebenzise noma imaphi amakhemikhali, sicela ulandele izinqubo zokusebenza ezifanele nemithethonqubo efanele, futhi uthintane neziqondiso zochwepheshe lapho kudingeka.
