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2-Chloro-3-bromo-5-nitropyridine (CAS# 5470-17-7) Isithombe Esifakiwe
  • 2-Chloro-3-bromo-5-nitropyridine (CAS# 5470-17-7) 1

2-Chloro-3-bromo-5-nitropyridine (CAS# 5470-17-7)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C5H2BrClN2O2
I-Molar Mass 237.44
Ukuminyana 1.936±0.06 g/cm3(Kubikezelwe)
I-Melting Point 54-58
I-Boling Point 293.8±35.0 °C(Kubikezelwe)
I-Flash Point 131.5°C
I-Vapor Presure 0.00295mmHg ku-25°C
Ukubukeka Okuqinile
pKa -4.99±0.10(Kubikezelwe)
Isimo Sesitoreji Gcina endaweni emnyama, evalwe endaweni eyomile, Emazingeni Okushisa Egumbi
I-Refractive Index 1.627
I-MDL I-MFCD00233989

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Amakhodi Engozi R25 – Kunobuthi uma ugwinywe
R41 – Ingozi yokulimala okubi emehlweni
Incazelo Yokuphepha S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha.
S39 – Gqoka ukuvikela iso / ubuso.
S45 – Uma kwenzeka ingozi noma uzizwa ungaphilile, funa iseluleko sezokwelapha ngokushesha (bonisa ilebula noma nini lapho kunokwenzeka.)
Ama-ID e-UN 2811
I-WGK Germany 1
I-Hazard Class I-IRRITANT
Iqembu Lokupakisha Ⅲ

 

Isingeniso

Kuyinhlanganisela ye-organic ifomula yayo yamakhemikhali ithi C5H2BrClN2O2.

 

Imvelo:

1. Ukubukeka: Iqinile, ngokuvamile i-crystalline powder ephuzi.

2. I-Solubility: Ingancibilika kuzincibilikisi zemvelo (njenge-dichloromethane, i-ether, njll.), kodwa ukuncibilika emanzini kuphansi.

 

Sebenzisa:

Kuyinhlanganisela ebalulekile ephakathi, esetshenziswa kabanzi emkhakheni we-chemical synthesis.

1. Ukuhlanganiswa kwezidakamizwa: Ingasetshenziselwa ukuhlanganiswa kwezinto eziphilayo ezisebenzayo, njengezidakamizwa, izibulala-zinambuzane, njll.

2. Ukwakheka kodayi: Kungasetshenziswa ukuhlanganisa odayi nemibala.

3. Ukuhlanganiswa kwezibulala-zinambuzane: zingasetshenziselwa izibulala-zinambuzane zokwenziwa kanye nezibulala-zinambuzane.

 

Indlela Yokulungiselela: Ukulungiswa kwe

kungenziwa ngokusabela kwe-nitrate enamakha, izinyathelo ezithile zimi kanje:

1. Ngaphansi kwezimo ezifanele, i-pyridine isabela nge-nitric acid egxilile ukuze ithole i-pyridine-3-nitric acid.

2. I-Pyridine-3-nitric acid bese isabela nge-cuprous bromide ukuze kutholwe i-3-bromopyridine.

3. Ekugcineni, i-3-bromopyridine isabela nge-silver chloride ukuze kutholwe umkhiqizo wokugcina.

 

Ulwazi Lokuphepha:

1. inezinga elithile lokucasuka kanye nobuthi, sicela ugweme ukuthintana nesikhumba, amehlo kanye nesistimu yokuphefumula.

2. lapho behlinzwa, kufanele bagqoke amagilavu ​​okuzivikela, izibuko zobuso kanye nemaski nezinye izinto zokuzivikela.

3. ngesikhathi sokugcinwa nokusetshenziswa, kufanele kugcinwe ngokuhlukana nezinto ezivuthayo, ama-oxidants nezinye izinto.

4. Uma ulahla imfucuza, sicela uhambisane nemithetho yendawo yokulahlwa kwemfucuza ukuze unciphise ingozi yokungcoliswa kwemvelo.

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