2-Methyl-5-nitropyridine (CAS# 21203-68-9)
| Iimpawu ezinobungozi | Xi – Irritant |
| Iikhowudi zoMngcipheko | 36/37/38 – Ukucaphukisa amehlo, inkqubo yokuphefumula kunye nolusu. |
| Inkcazelo yoKhuseleko | S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. S36 – Nxiba iimpahla ezifanelekileyo ezikhuselayo. |
Intshayelelo
I-2-methyll-5-nitropyridine yi-organic compound ene-chemical formula C6H6N2O2, eneempawu ezilandelayo:
1. Imbonakalo: ayinambala ukuya kwikristale etyheli;
2. Ukuphunga: akukho vumba likhethekileyo;
3. Indawo yokunyibilika: 101-104 degrees Celsius;
4. Ukunyibilika: phantse kunganyibiliki emanzini, kunyibilika kwizinyibilikisi eziphilayo ezifana ne-ethanol kunye ne-dichloromethane.
I-2-Methyl-5-nitropyridine isetyenziswa kakhulu njengento ekrwada kwaye iphakathi kwi-organic synthesis kunye ne-pharmaceutical industry. Ingasetyenziselwa ukuhlanganiswa kwe-pyridine kunye ne-thiophene, kwaye ingasetyenziselwa ukulungiswa kwezilwanyana ezibulala izinambuzane, idayi kunye nezinye iikhompawundi kwintsimi yeyeza.
Ukulungiswa kwe-2-methyll-5-nitropyridine kunokwenziwa ngamanyathelo alandelayo:
I-1.2-pyridine i-acetic acid kunye ne-nitrite ye-sodium iphendulwa phantsi kweemeko ze-acidic ukuvelisa i-2-nitropyridine.
2. Ukusabela kwe-2-Nitro pyridine kunye ne-methylating reagent (efana ne-methyl iodide) ukuvelisa i-2-Methyl-5-nitropyridine.
Xa usebenzisa kwaye ugcina i-2-methyll-5-nitropyridine, kufuneka ubeke ingqalelo kule ngcaciso ilandelayo yokhuseleko:
-Iyinto enokutsha, thintela ukudibana nomlilo;
-Naka ingqalelo kumanyathelo okukhusela ngexesha lokusebenza, njengokugqoka iiglasi zokukhusela kunye neiglavu;
-kugweme ukuphefumla irhasi okanye uthuli, ugweme ukudibana kwesikhumba;
-Gcina kwisitya esivaliweyo, kude nomlilo kunye ne-oxidizing agents;
-Kuphephe ukuxubana nee-oxidants ezinamandla okanye iiasidi ezinamandla.
