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3-Bromo-5-methylpyridine (CAS# 3430-16-8) Isithombe Esifakiwe
  • 3-Bromo-5-methylpyridine (CAS# 3430-16-8) 1

3-Bromo-5-methylpyridine (CAS# 3430-16-8)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C6H6BrN
I-Molar Mass 172.02
Ukuminyana 1.4869 g/mL ku-25 °C
I-Melting Point 16.5-16.7 °C
I-Boling Point 110°C/25mmHg(lit.)
I-Flash Point 91 °C
I-Vapor Presure 0.533mmHg ku-25°C
pKa 3.16±0.20(Kubikezelwe)
Isimo Sesitoreji Gcina endaweni emnyama, evalwe endaweni eyomile, Emazingeni Okushisa Egumbi
I-Refractive Index 1.5618

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Amakhodi Engozi R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba.
R41 – Ingozi yokulimala okubi emehlweni
I-R22 – Iyingozi uma igwinywe
Incazelo Yokuphepha S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha.
S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu ​​kanye nokuvikela iso/ubuso.
S39 – Gqoka ukuvikela iso / ubuso.
Ama-ID e-UN NA 1993 / PGIII
I-WGK Germany 3
I-Hazard Class I-IRRITANT

 

Isingeniso

I-3-Bromo-5-methyl-pyridine iyinhlanganisela ye-organic enefomula yamakhemikhali ye-C6H6BrN kanye nesisindo se-molecular 173.03g/mol. Okulandelayo yincazelo yemvelo yayo, ukusetshenziswa, ukulungiswa kanye nolwazi lokuphepha:

 

Imvelo:

-Ukubukeka: Uketshezi olungenambala kuya kokuphuzi okuphaphathekile noma okuqinile okucwebezelayo.

-Ukunyibilika: Kuncibilika kuzincibilikisi eziningi zemvelo, njengotshwala, ama-ether nama-hydrocarbon ane-chlorine.

-Indawo yokuncibilika: mayelana ne-14-15 ℃.

-Iphuzu elibilayo: mayelana ne-206-208 ℃.

-Ukuminyana: mayelana ne-1.49g/cm³.

-Iphunga: linephunga elikhethekile nelivuselelayo.

 

Sebenzisa:

- I-3-Bromo-5-methyl-pyridine ivame ukusetshenziswa njengendawo ephakathi kwe-organic synthesis futhi ingasetshenziswa ukulungisa ezinye izinhlanganisela eziphilayo, njengezidakamizwa, izibulala-zinambuzane kanye nodayi.

-Ingasetshenziswa futhi njenge-reagent ocwaningweni naselabhorethri.

 

Indlela Yokulungiselela:

- I-3-Bromo-5-methyl-pyridine ingahlanganiswa ngezindlela ezihlukahlukene, enye yazo evame ukusetshenziswa ngokungeza i-methylating agent (njenge-methyl magnesium bromide) ku-3-bromopyridine.

 

Ulwazi Lokuphepha:

I-3-Bromo-5-methyl-pyridine kufanele isetshenziswe ngokuhambisana nezinqubo zokuphepha ezifanele, njengokugqoka izinto zokuzivikela ezidingekayo kumalabhorethri amakhemikhali.

-Kungase kubangele ukucasuka nokulimala kwamehlo, isikhumba kanye nesistimu yokuphefumula. Hlanza indawo ethintekile ngokushesha futhi ufune usizo lwezokwelapha uma kunesidingo.

-Uma ugcina futhi uphatha, kufanele ugcinwe esitsheni esivaliwe, kude nomlilo kanye nokushisa okuphezulu.

-Lapho ulahla udoti, thobela imithetho yendawo futhi uthathe izinyathelo ezifanele zokuvikela imvelo.

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