2-Bromo-5-chloropyridine (CAS# 40473-01-6)
| Likhoutu tsa Kotsi | R36/37/38 – Ho tena mahlo, tsamaiso ya ho hema le letlalo. R20/22 – E kotsi ka ho hema le haeba e koetsoe. R20/2236/37/38 - R20/21/22 – E kotsi ka ho hema, ho kopana le letlalo le ha e koetsoe. |
| Tlhaloso ea Tšireletseho | S36/37/39 - Apara liaparo tse loketseng tsa tšireletso, liatlana le tšireletso ea mahlo / sefahleho. S26 - Ha u kopana le mahlo, hlatsoa hang-hang ka metsi a mangata 'me u batle keletso ea bongaka. S22 - U se ke ua hema lerole. S22 26 36/37/39 - S36 - Apara liaparo tse loketseng tsa tšireletso. |
| Li-ID tsa UN | E pholile, e omme, e koetsoe ka thata |
| Khoutu ea HS | 29339900 |
| Sehlopha sa Likotsi | TS'OALANG |
Selelekela
2-Bromo-5-chloropyridine ke motsoako oa lintho tse phelang, tse latelang ke kenyelletso ea thepa e itseng, tšebeliso, mekhoa ea ho lokisetsa le tlhahisoleseding ea polokeho ea 2-bromo-5-chloropyridine:
Boleng:
1. Ponahalo: 2-bromo-5-chloropyridine ke 'mala o se nang 'mala o mosehla o tiileng.
3. Solubility: 2-bromo-5-chloropyridine e na le solubility e ntle ho li-solvents tse tloaelehileng, tse kang ethanol, acetone le dimethyl thionite ether.
Sebelisa:
1. Li-reagents tsa lik'hemik'hale: 2-bromo-5-chloropyridine e atisa ho sebelisoa e le reagent ho organic synthesis.
2. Likokoanyana tse lipakeng tsa chefo e bolaeang likokoanyana: E boetse e sebelisoa ha ho etsoa li-intermediate tsa chefo e bolaeang likokoanyana e le lisebelisoa tse sebelisoang bakeng sa chefo e bolaeang likokoanyana kapa chefo.
Mokhoa:
Tokisetso ea 2-bromo-5-chloropyridine e ka fumanoa ka karabelo ea 2-chloropyridine e nang le hydrobromic acid. Mehato e khethehileng e kenyelletsa ho qhibiliha 2-chloropyridine ka anhydrous cyclohexane, ho eketsa hydrobromic acid, ho futhumatsa karabelo le ho sisinyeha, ka mor'a hore karabelo e phethoe, karolo e hlahisoang e arotsoe ka metsi le tharollo ea sodium chloride e tletseng metsi, 'me sehlahisoa se lebisitsoeng se hloekisoa ka ho omisa. kalafo le distillation.
Lintlha tsa Tšireletseho:
1. 2-Bromo-5-chloropyridine e na le liphello tse ka bang kotsi tsa kankere le chefo ho tsamaiso ea ho ikatisa, 'me ho lokela ho nkoa mehato ea ho itšireletsa nakong ea tšebeliso.
2. Qoba ho kopana le letlalo le mahlo.
3. Ha e sebelisoa le ho e boloka, e lokela ho behoa hole le mollo le mehloli ea mocheso.
4. Maemo a matle a moea a lokela ho bolokoa nakong ea ts'ebetso.
5. Ka kopo latela ka tieo mekhoa e nepahetseng ea ts'ireletso 'me u sebelise lisebelisoa tsa ho itšireletsa.
