METHYL 2 5-DICHLORONICOTINATE(CAS# 67754-03-4)

Intshayelelo

I-Methyl 2, i-organic compound kunye ne-chemical formula C7H4Cl2NO2. Oku kulandelayo yinkcazo yeepropati, ukusetyenziswa, ukulungiswa kunye nolwazi lokhuseleko lwekhompawundi:

Indalo:

- methyl 2, lulwelo olungenambala.

-Inevumba elirhabaxa.

-I-compound i-soluble kwi-solvent ye-organic efana ne-methanol okanye i-dichloromethane.

-Indawo yokunyibilika kwayo imalunga ne-43-47 ° C, kwaye indawo yayo yokubilisa imalunga ne-257-263 ° C.

Sebenzisa:

- i-methyl 2, esetyenziswa ngokuqhelekileyo njenge-synthetic intermediate ye-pesticides kunye ne-insecticide.

-Ingasetyenziselwa ukudibanisa ezinye iikhompawundi kwi-organic synthetic chemistry.

Indlela yokulungiselela:

- methyl 2, inokulungiswa ngala manyathelo alandelayo:

1. Okokuqala, i-2,5-dichloronicotinic acid i-esterified kunye ne-asidi ye-formic.

2. Ukusabela ngokuqhelekileyo kuqhutyelwa phantsi kweemeko ze-acidic, kwaye i-esterifying agent, njenge-alcohol okanye i-catalyst ye-asidi, yongezwa ukukhuthaza ukusabela.

3. Emva kokuba i-reaction igqityiwe, imveliso ekujoliswe kuyo iyahlukana kwaye ihlanjululwe kumxube we-reaction by distillation okanye i-extraction.

Ulwazi ngoKhuseleko:

- i-methyl 2, i-compound ecaphukisayo enokuthi ibe nefuthe elicaphukisayo emehlweni, ulusu kunye ne-mucous membranes.

-Nxiba izixhobo ezifanelekileyo zokuzikhusela ezifana neeglasi, iiglavu kunye nempahla yokuzikhusela xa uphethe kwaye usebenzisa.

-Kufuneka kube kude nomlilo kunye nendawo yobushushu obuphezulu ukuthintela umngcipheko womlilo kunye nokudubula.

-Xa ugcina kunye nokuphatha, landela ngokungqongqo iinkqubo zokusebenza zokukhusela ukuphepha ukuxuba kunye nokudibanisa nezinye izinto.

-Ukuba ufakwe okanye uphefumle, funa unyango ngokukhawuleza kwaye unikezele ngephepha ledatha yokhuseleko okanye ileyibhile yekhemikhali.