2-Methoxy-5-nitro-4-picolin (CAS# 6635-90-1)
| Iikhowudi zoMngcipheko | R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu. I-R41 – Umngcipheko womonakalo omkhulu emehlweni I-R37/38 – Iyacaphukisa inkqubo yokuphefumla kunye nolusu. I-R22 – Iyingozi xa iginyiwe |
| Inkcazelo yoKhuseleko | S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. I-S37/39 -Nxiba iiglavu ezifanelekileyo kunye nokukhusela amehlo / ubuso S39 –Nxiba ukhuseleko lwamehlo / ubuso. |
| WGK eJamani | 3 |
| IKlasi yeeNgozi | OKUTHUMEKAYO |
Intshayelelo
Yikhompawundi yezinto eziphilayo kunye ne-chemical formula C8H9NO3. Oku kulandelayo yinkcazo yobume bayo, ukusetyenziswa, ukulungiswa kunye nolwazi lokhuseleko:
Indalo:
-Inkangeleko: Ayinabala ukuya kwikristale etyheli.
-I-Solubility: Iphantse inganyibiliki emanzini, kodwa ine-solubility engcono kwii-solvents eziphilayo ezifana ne-ethanol kunye ne-dimethylformamide.
-Indawo yokunyibilika: Indawo yokunyibilika imalunga ne 72-75 degrees celcius.
Sebenzisa:
-I-Chemical synthesis: Yinto eqhelekileyo esetyenziswayo ephakathi engasetyenziselwa ukudibanisa ezinye izinto eziphilayo.
-Uphando: Ingasetyenziselwa ukuphendula kwe-organic synthesis kunye nolunye uphando lwebhubhoratri.
Indlela yokulungiselela:
I-Synthesis inokuqhutywa ngala manyathelo alandelayo:
1. Okokuqala, i-2-methyloxy-5-nitropyridine ifunyenwe ngokuphendula i-2-methyloxy-5-nitropyridine nge-nitric acid.
2. Emva koko uphendule i-2-methoxy-5-nitropyridine kunye ne-methylating reagent (efana ne-methyl sodium iodide) ukufumana imveliso yokugqibela.
Ulwazi ngoKhuseleko:
Idatha yokhuseleko ilinganiselwe, kodwa inokuba yingozi ebantwini kunye nokusingqongileyo. Xa usebenzisa, kufuneka alandele inkqubo efanelekileyo yaselabhoratri, kwaye athathe amanyathelo ayimfuneko okuzikhusela, njengokunxiba iindondo zokuzikhusela kunye neeglavu. Ukongeza, i-compound kufuneka igcinwe kwaye ilahlwe ngokufanelekileyo ukuthintela ukungcoliseka kwendalo.
