isibhengezo_sekhasi

umkhiqizo

1-Bromo-2 4-difluorobenzene (CAS# 348-57-2)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C6H3BrF2
I-Molar Mass 192.99
Ukuminyana 1.708 g/mL ku-25 °C (okhanyisiwe)
I-Melting Point -4 °C (okukhanya)
I-Boling Point 145-146 °C (okhanyisiwe)
I-Flash Point 125°F
Ukuncibilika kwamanzi AKUHLANGANISIWE
I-Vapor Presure 1.94mmHg ku-25°C
Ukubukeka Uketshezi
I-Gravity ethize 1.708
Umbala Sula engenambala ukuya kunsundu
I-BRN 1680892
PH 5.02 ngo-24℃ kanye no-10g/L
Isimo Sesitoreji Ivalwe endaweni eyomile, engu-2-8°C
I-Refractive Index n20/D 1.505(lit.)
Izakhiwo Zomzimba Nezamakhemikhali ukuminyana 1.708
izinga lokuncibilika -4°C
iphoyinti lokubilisa 145°C
inkomba ye-refractive 1.504-1.506
iphoyinti elikhanyayo 51°C
Amanzi ancibilikayo AYIKHO
Sebenzisa Okwemithi noma i-liquid crystal material intermediates

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Amakhodi Engozi U-R10 – Uyavutha
R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba.
Incazelo Yokuphepha S16 – Zigcine kude nemithombo yokuthungela.
S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha.
S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu ​​kanye nokuvikela iso/ubuso.
I-S37/39 – Gqoka amagilavu ​​afanelekile kanye nokuvikela iso/ubuso
S36 – Gqoka izingubo ezifanele zokuzivikela.
Ama-ID e-UN UN 1993 3/PG 3
I-WGK Germany 3
Ikhodi ye-HS 29036990
Inothi Lengozi Okuvutha umlilo
I-Hazard Class 3
Iqembu Lokupakisha III

 

Isingeniso

I-2,4-Difluorobromobenzene iyinhlanganisela yezinto eziphilayo. Iwuketshezi oluphuzi ukuya kokuphaphathekile olunephunga elimnandi. Okulandelayo incazelo eningiliziwe yezakhiwo, ukusetshenziswa, izindlela zokulungiselela kanye nolwazi lokuphepha lwe-2,4-difluorobromobenzene:

 

Ikhwalithi:

I-2,4-Difluorobromobenzene into evuthayo engakha izingxube ezivuthayo noma eziqhumayo ngomoya. Iyagqwala kwezinye izinsimbi.

 

Sebenzisa:

I-2,4-Difluorobromobenzene isetshenziswa kakhulu njengendawo ephakathi ku-organic synthesis. Emkhakheni wezibulala-zinambuzane, isetshenziselwa ukwenza ama-insecticide nama-herbicides.

 

Indlela:

I-2,4-I-Difluorobromobenzene ivamise ukulungiswa ngokusabela kokushintsha. Indlela evamile yokulungisa iwukusabela i-bromobenzene ne-potassium fluoride ngaphansi kwezimo ezine-asidi ukuze ikhiqize i-2,4-dibromobenzene, bese i-fluorinate phambi kwe-agent e-fluorinating ukuze ithole i-2,4-difluorobromobenzene.

 

Ulwazi Lokuphepha:

I-2,4-Difluorobromobenzene into ephilayo enobuthi obuthile. Inomphumela ocasulayo esikhumbeni, emehlweni, kanye nolwelwesi lwamafinyila futhi kufanele ihlanzwe ngamanzi ngokushesha ngemva kokuxhumana. Ukuhogela umhwamuko wawo kufanele kugwenywe ngesikhathi sokusetshenziswa futhi kuqinisekiswe ukungena komoya okwanele. Ngesikhathi sokugcina nokuphatha, kufanele kuqashelwe ukugwema ukuthungela nogesi omile. Izinqubo zokusebenza zokuphepha ezifanele kufanele zilandelwe futhi kugqokwe izinto zokuzivikela ezifanele. Lapho kusingathwa i-2,4-difluorobromobenzene, imithetho yendawo kufanele ilandelwe futhi imfucuza kufanele ilahlwe ngendlela efanele.


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