3-Bromo-2-chloro-5-(trifluoromethyl)pyridine(CAS# 71701-92-3)
Umngcipheko kunye noKhuseleko
| Iikhowudi zoMngcipheko | I-R25 – Inetyhefu xa iginyiwe R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu. |
| Inkcazelo yoKhuseleko | S7/9 - S22 – Musa ukuphefumla uthuli. S24/25-Kuphephe ukudibana nolusu namehlo. S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. S36/37 – Nxiba iimpahla ezifanelekileyo zokukhusela kunye neeglavu. I-S38 - Kwimeko yokungonelanga komoya, nxiba izixhobo ezifanelekileyo zokuphefumla. S45 - Kwimeko yengozi okanye ukuba uziva ungaphilanga, funa iingcebiso zonyango ngokukhawuleza (bonisa ileyibhile nanini na kunokwenzeka.) S51 –Sebenzisa kuphela kwiindawo ezinomoya owaneleyo. |
| Izazisi ze-UN | UN 2811 6.1 / PGIII |
| WGK eJamani | 3 |
| IKlasi yeeNgozi | 6.1 |
Intshayelelo
Ikhompawundi inezicelo ezibalulekileyo kwi-chiza synthesis kunye ne-pesticide synthesis. Ingasetyenziswa njengendawo ephakathi kwi-synthesis ye-biologically active compounds. Ngokomzekelo, ingasetyenziselwa ukudibanisa iziyobisi ezichasayo kunye nezibulala-zinambuzane, njl.
I-3-Bromo-2-chloro-5- (trifluoromethyl) pyridine inokulungiswa ngeendlela ezahlukeneyo. Indlela eqhelekileyo kukuzisa i-bromine kunye ne-athomu ye-chlorine ekuphenduleni nge-bromination kunye ne-chlorination, ngokulandelanayo, ngokuqala nge-pyridine. Emva koko, iqela le-trifluoromethyl liziswa kwi-trifluoromethylation reaction. Le synthesis idla ngokuqhutywa phantsi kwe-inert atmosphere ukuqinisekisa ukukhetha okuphezulu kunye nesivuno sokuphendula.
I-3-Bromo-2-chloro-5- (trifluoromethyl) pyridine inolwazi oluncinane lokhuseleko. Isenokucaphukisa amehlo, inkqubo yokuphefumla kunye nolusu. Ngethuba lokusetyenziswa, kufuneka kuthathelwe ingqalelo ukuphepha ukudibanisa ngokuthe ngqo kwesikhumba kunye namehlo. Ngelo xesha, amanyathelo afanelekileyo okukhusela kufuneka athathwe ngexesha lokusebenza, njengokugqoka iiglasi zokukhusela, iiglavu kunye nempahla yokukhusela.
Ukongezelela, ngexesha lokuphatha kunye nokugcinwa, kufuneka kuthathelwe ingqalelo ukukhusela ukudibanisa nezinto ezinokutsha kunye nokugcina umoya omhle. Xa ulahla inkunkuma, imigaqo yendawo kufuneka ilandelwe kwaye iindlela ezifanelekileyo zokulahla inkunkuma kufuneka zamkelwe. Isetyenziswa kakuhle kwaye iphathwa phantsi kolawulo lweekhemisti ezinamava.
