2 3-Diamino-5-bromopyridine (CAS# 38875-53-5)
| Amakhodi Engozi | R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba. R34 – Ibangela ukusha |
| Incazelo Yokuphepha | S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha. S36 – Gqoka izingubo ezifanele zokuzivikela. I-S37/39 – Gqoka amagilavu afanelekile kanye nokuvikela iso/ubuso S45 – Uma kwenzeka ingozi noma uzizwa ungaphilile, funa iseluleko sezokwelapha ngokushesha (bonisa ilebula noma nini lapho kunokwenzeka.) S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu kanye nokuvikela iso/ubuso. |
| I-WGK Germany | 3 |
| Ikhodi ye-HS | 29333990 |
| Inothi Lengozi | Iyacasula |
| I-Hazard Class | 6.1 |
| Iqembu Lokupakisha | III |
Isingeniso
I-5-Bromo-2,3-diaminopyridine iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso semvelo yayo, ukusetshenziswa, izindlela zokukhiqiza kanye nolwazi lokuphepha:
Ikhwalithi:
- Ukubukeka: I-5-Bromo-2,3-diaminopyridine imhlophe kuya kokuphuzi okukhanyayo kwecrystalline noma i-crystalline powder.
- Ukunyibilika: Inhlanganisela iyancibilika kancane emanzini futhi inokuncibilika okuhle kuzincibilikisi zemvelo.
Sebenzisa:
- I-5-Bromo-2,3-diaminopyridine ivame ukusetshenziswa njenge-reagent ekuphenduleni kwe-organic synthesis.
- Ingasetshenziswa njengendawo ephakathi ekuhlanganisweni kwezinhlanganisela zokuxhumanisa noma ama-catalysts.
Indlela:
Ukulungiswa kwe-5-bromo-2,3-diaminopyridine kungafezwa ngezinyathelo ezilandelayo:
1. Chaza i-2,3-diaminopyridine ku-dilute i-hydrochloric acid kuqala.
2. I-sodium nitrite ibe seyengezwa ukwenza izinhlanganisela ze-nitroso.
3. Ngaphansi kwezimo zokugeza amanzi e-ice, i-potassium bromide yengezwa ku-5-bromo-2,3-diaminopyridine.
Ulwazi Lokuphepha:
- I-5-Bromo-2,3-diaminopyridine iyinhlanganisela yezinto eziphilayo okufanele igcinwe futhi isetshenziswe ngendlela efanele ukugwema ukuthintana nesikhumba namehlo.
- Lapho usebenza, kufanele kuthathwe izinyathelo ezinhle zokuphepha zaselabhorethri, njengokugqoka izinto zokuzivikela ezifanele (isb., amagilavu, izibuko, ijazi laselabhorethri, njll.).
- Bamba inhlanganisela ngendlela yokugwema noma yiziphi izingozi ezibangelwa ukuhogela, ukungenwa, noma ukuthintana.
Ocwaningweni lwamakhemikhali nasekuhloleni, kubalulekile ukwenza umsebenzi omuhle wokuphatha ukuphepha kwaselabhorethri futhi usebenze ngokulandela isiqondiso sochwepheshe.
