2-Bromo-4-methyl-3-nitropyridine (CAS# 23056-45-3)
| Iikhowudi zoMngcipheko | I-R20/21/22 – Iyingozi ngokuphefumla, xa udibana nolusu naxa uginyiwe. R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu. |
| Inkcazelo yoKhuseleko | S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. I-S37/39 -Nxiba iiglavu ezifanelekileyo kunye nokukhusela amehlo / ubuso |
| IKlasi yeeNgozi | OKUTHUMEKAYO |
Intshayelelo
Yikhompawundi ephilayo kunye nefomula yemichiza ye-C, H, BrN, O. Oku kulandelayo kukwazisa kwezinye iimpawu zayo, ukusetyenziswa, iindlela kunye nolwazi lokhuseleko:
Indalo:
-Imbonakalo: Ayinambala ukuya kwikristale emthubi okanye ifom yomgubo.
-I-Solubility: Inokuchithwa kwii-solvents ze-organic, ezifana ne-ethanol, i-dimethyl sulfoxide kunye ne-chloroform, kodwa i-insoluble emanzini.
Sebenzisa:
I-Synthetic chemistry: I-ligand esetyenziswa ngokuqhelekileyo, enokuthi yenze ii-complexes kunye neenguqu zetsimbi kwaye zisetyenziswe njenge-catalysts kwi-organic synthesis.
-Ukwenziwa kwezibulali zinambuzane: Isenokusetyenziswa njengendawo ephakathi kwizitshabalalisi ezithile.
Indlela:
Indlela yokulungiselela inokuqhutywa ngala manyathelo alandelayo:
1. Okokuqala, i-lutidine ichithwa kwi-dimethyl sulfoxide.
2. Kwiqondo lobushushu eliphantsi, kancinane wongeza i-nitric acid ngelixa ugcina iqondo lobushushu elingaphantsi kwe-0 degrees Celsius.
3. Kancinci yongeza i-bromoethane Dropwise kwisistim yokuphendula, qhubeka nokugcina ukushisa okuphantsi, kwaye uqhube kude kube sekupheleni kokuphendula.
4. Ekugqibeleni, umxube wokuphendula uyahluzwa, uhlanjwe, ucwecwe kwaye womiswe ukuze ufumane i-calcium.
Ulwazi ngoKhuseleko:
Inokubangela iingozi ezithile kumzimba womntu kunye nokusingqongileyo, ngoko kufuneka ubeke ingqalelo kwimiba yezempilo kunye nokhuseleko xa usebenzisa kunye nokuphatha. Nantsi imiba yokhuseleko:
-Nxiba izixhobo ezifanelekileyo zokukhusela ezifana neglavu, iiglasi kunye nempahla yokukhusela xa usetyenziswa.
-Kuphephe ukuphefumla uthuli lwayo kunye nokudibana nolusu. Kwimeko yoqhagamshelwano ngengozi, ngokukhawuleza uhlambe indawo echaphazelekayo ngamanzi amaninzi kwaye ufune uncedo lwezonyango.
-Zigcine kude nobushushu kunye nemithombo yomlilo ngexesha logcino nokuphatha, kwaye ugcine umoya omhle.
-Kuphephe ukudibana ngokuthe ngqo kunye ne-oxidants, i-acids, i-alkalis kunye nezinye izinto ukuphepha ukuphendula okuyingozi.
Nceda uqaphele ukuba ulwazi olunikezwe apha lubhekiselele kuphela. Xa usebenzisa kunye nokuphatha imichiza ekusebenzeni, qiniseka ukuba ubhekiselele kuncwadi olufanelekileyo kunye nokuphatha imimiselo yokhuseleko, kwaye ulandele isikhokelo sobuchule.
