isibhengezo_sekhasi

umkhiqizo

5-Bromo-2-methoxy-3-nitro-4-picoline (CAS# 884495-14-1)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C7H7BrN2O3
I-Molar Mass 247.05
Ukuminyana 1.636±0.06 g/cm3(Kubikezelwe)
I-Boling Point 302.8±37.0 °C(Kubikezelwe)
I-Flash Point 136.9°C
Ukuncibilika I-Chloroform, i-Dichloromethane, i-Ethyl Acetate
I-Vapor Presure 0.00174mmHg ku-25°C
Ukubukeka Okuqinile
Umbala Okuphuzi Okukhanyayo
pKa -2.34±0.28(Kubikezelwe)
Isimo Sesitoreji Umkhathi ongenayo, izinga lokushisa legumbi
I-Refractive Index 1.577

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

 

Isingeniso

I-5-Bromo-2-methoxy-4-methyl-3-nitropyridine iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso sezakhiwo zayo, ukusetshenziswa kwayo, izindlela zokukhiqiza kanye nolwazi lokuphepha:

 

Ikhwalithi:

- Ukubukeka: Okuqinile okungenambala

- Ukunyibilika: Kuncibilika kwezinye izinyibilikisi zemvelo, njenge-ethanol ne-dimethylformamide

- Ukuzinza: Izinzile uma kuqhathaniswa nezinga lokushisa legumbi, kodwa lingabola ekukhanyeni okukhanyayo

 

Ukusetshenziswa: Isetshenziswa kabanzi emikhakheni yezemithi nezolimo.

- Ucwaningo lwesayensi: njenge-substrate noma i-reagent yokusabela kwe-organic synthesis, luphinde lusetshenziswe ocwaningweni nasekuthuthukisweni kwamakhemikhali ezinto eziphilayo.

 

Indlela:

Ukulungiswa kwe-5-bromo-2-methoxy-4-methyl-3-nitropyridine kungafezwa uchungechunge lokusabela kwamakhemikhali, okuhlanganisa nezinyathelo eziyisisekelo ze-organic synthesis, ezifana nokufaka esikhundleni kanye ne-oxidation.

 

Ulwazi Lokuphepha:

- Kuyinhlanganisela ye-organobromine futhi ingacasula futhi ibe nobuthi. Izinyathelo ezifanele zokuzivikela, njengokugqoka izingubo zamehlo ezivikelayo namagilavu, kufanele zithathwe ngesikhathi sokusebenza.

- Ukulahlwa kwemfucuza kufanele kuhambisane nemithetho yendawo yokulahlwa kwemfucuza yamakhemikhali ukuze kugwenywe imithelela emibi kwezemvelo.

- Imithombo yokuthungela kufanele igwenywe lapho igcinwa futhi isetshenziswa njengoba ingase ivuthe.

 


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  • Olandelayo:

  • Bhala umyalezo wakho lapha futhi usithumelele wona