2 3 5-trifluoropyridine (CAS# 76469-41-5)
| Iikhowudi zoMngcipheko | R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu. I-R10-Inokutsha |
| Inkcazelo yoKhuseleko | S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. S36/37/39 – Nxiba iimpahla ezifanelekileyo zokukhusela, iiglavu kunye nokukhusela amehlo/ubuso. S37 – Nxiba iiglavu ezifanelekileyo. |
| Izazisi ze-UN | 1993 |
| Ikhowudi ye-HS | 29333990 |
| Inqaku Lengozi | Enokutsha/Ecaphukisayo |
| IKlasi yeeNgozi | 3 |
| Iqela lokuPakisha | III |
Intshayelelo
I-2,3,5-Trifluoropyridine i-organic compound kunye ne-chemical formula C5H2F3N. Oku kulandelayo yinkcazo yobume bayo, ukusetyenziswa, ukulungiswa kunye nolwazi lokhuseleko:
Indalo:
I-2,3,5-Trifluoropyridine yilwelo olungenambala kunye nevumba elibi. Inobunzima be-1.42 g/mL, indawo yokubilisa ye-90-91 ° C, kunye neqondo lokunyibilika lika -47 ° C. Ine-hydrophobicity eyomeleleyo kwaye kunzima ukuyinyibilika emanzini, kodwa inokunyibilika kwii-solvents eziqhelekileyo ze-organic ezifana ne-ethanol, i-acetone kunye ne-xylene.
Sebenzisa:
I-2,3,5-Trifluoropyridine isetyenziswa kakhulu kwintsimi ye-organic synthesis. Njenge-reagent esebenzayo ye-fluorination, inokusetyenziswa kwi-fluorination reactions, kwaye ihlala isetyenziselwa ukuphendula ukwazisa iiathom ze-fluorine. Ukongeza, inokuthi isetyenziswe njengendawo ephakathi kwi-synthesis yamachiza, izitshabalalisi kunye nezinye iikhompawundi eziphilayo.
Indlela yokulungiselela:
I-2,3,5-Trifluoropyridine ineendlela ezininzi zokulungiselela, enye yazo isetyenziswa ngokuqhelekileyo ukufumana ngokuphendula i-2,3, i-5-trichloropyridine kunye ne-hydrofluoric acid. Ngethuba lokuphendula, i-2,3, i-5-trichloropyridine iphendulwa nge-hydrofluoric acid kwi-solvent efanelekileyo, kwaye ukushisa kwe-reaction kunye nexabiso le-pH lilawulwa ekugqibeleni ukufumana i-2,3,5-Trifluoropyridine.
Ulwazi ngoKhuseleko:
Nika ingqalelo kumanyathelo okhuseleko xa uphethe i-2,3,5-Trifluoropyridine. Yikhompawundi enuka kamnandi enokuthi ibangele ukucaphuka kwesikhumba, amehlo kunye nenkqubo yokuphefumla. Ke ngoko, kunqande ukunxibelelana ngokuthe ngqo nolusu kunye namehlo xa usebenzisa, kwaye qiniseka ukuba usebenza kwindawo engena umoya. Ngexesha lokuphatha kunye nokugcinwa, kuyimfuneko ukuthatha amanyathelo afanelekileyo okukhusela kwaye ugweme ukudibanisa ne-oxidizing agents kunye ne-acids eqinile ukukhusela ukuphendula okuyingozi.
Ukongeza, kusetyenziso lwazo naziphi na iikhemikhali, nceda ulandele iinkqubo zokusebenza ezichanekileyo kunye nemimiselo efanelekileyo, kwaye udibane nesikhokelo sobuchule xa kuyimfuneko.
