2 3 5-Tribromopyridine (CAS# 75806-85-8)
| Amakhodi Engozi | 34 - Ibangela ukusha |
| Incazelo Yokuphepha | S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha. S27 – Khumula ngokushesha zonke izingubo ezingcolile. S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu kanye nokuvikela iso/ubuso. S45 – Uma kwenzeka ingozi noma uzizwa ungaphilile, funa iseluleko sezokwelapha ngokushesha (bonisa ilebula noma nini lapho kunokwenzeka.) |
| I-Hazard Class | I-IRRITANT, UMSAKAZI S |
Isingeniso
I-2,3,5-Tribromopyridine iyinhlanganisela ye-organic ene-chemical formula C5H2Br3N. Okulandelayo yisingeniso kwezinye zezakhiwo zayo, ukusetshenziswa, ukwakhiwa kanye nolwazi lokuphepha:
Imvelo:
-Ukubukeka: 2,3,5-Tribromopyridine iqinile eliphuzi eliphuzi elingenambala.
-I-Solubility: Ayincibiliki emanzini, kodwa ingancibilika kuzincibilikisi zemvelo ezifana ne-chloroform, i-dichloromethane, njll.
-Iphuzu lokuncibilika: 2,3,5-Tribromopyridine inephuzu lokuncibilika elicishe libe ngu-112-114°C.
Sebenzisa:
- I-2,3,5-Tribromopyridine ivame ukusetshenziswa njenge-reagent futhi iphakathi ku-organic synthesis.
-Isetshenziswa kabanzi emkhakheni wokuhlanganiswa kwezidakamizwa, ukukhiqizwa kwezibulala-zinambuzane kanye nokulungiselela udayi.
-Ngaphezu kwalokho, ingasetshenziswa futhi njengento yokuqala yokuhlanganiswa kwezinhlanganisela zensimbi zensimbi (kufaka phakathi ama-polymers wokuxhumanisa kanye nezinto ze-photoelectric).
Indlela Yokulungiselela:
Indlela yokulungiselela i-2,3,5-Tribromopyridine ingafinyelelwa ngezinyathelo ezilandelayo:
Okokuqala, i-pyridine incibilika ku-solvent ephilayo njenge-dichloromethane noma i-chloroform.
2. Faka i-bromine kwisisombululo bese ushisa ukusabela.
3. Ngemva kokuphothulwa kokusabela, umkhiqizo we-brominated wahlungwa nge-hydrolyzed ngokungezwa kwe-dropwise amanzi.
4. Ekugcineni, umkhiqizo uhlukanisiwe futhi uhlanjululwe ngokuhlunga, i-crystallization, njll.
Ulwazi Lokuphepha:
- I-2,3,5-Tribromopyridine ngeke ibangele izinkinga zokuphepha ngaphansi kwezimo ezijwayelekile zokusebenza.
-Ingase ibangele ukucasuka esikhumbeni, emehlweni nasendleleni yokuphefumula, ngakho gqoka izinto zokuzivikela ezifanele uma uzisebenzisa.
-Gcina izinqubo ezifanele zaselabhorethri kanye nezinyathelo zokuphepha lapho uphatha lesi sithako.
-Uma ugcina futhi uphatha i-compound, ukunakekelwa kufanele kuthathwe ukuze ugweme ukuthintana nama-oxidants, ama-acids aqinile, izisekelo eziqinile nezinye izinto.
Sicela uqaphele ukuthi imininingwane engenhla ingeyereferensi kuphela. Uma usebenzisa i-2,3,5-Tribromopyridine noma enye into yamakhemikhali, sicela ulandele izincomo zokusebenza okuphephile nokusetshenziswa okulungile, futhi ufunde futhi uhambisane nephepha ledatha yokuphepha lamakhemikhali afanele.
