iphepha_ibhena

imveliso

4-Bromo-3-chlorobenzoic acid (CAS# 25118-59-6)

Ipropati yeMichiza:

Ifomula yeemolekyuli C7H4BrClO2
IMisa yeMolar 235.46
Ukuxinana 1.809±0.06 g/cm3 (20 ºC 760 Torr)
Indawo yokunyibilika 220-224 °C
Indawo yeBoling 333.7±27.0 °C(Kuqikelelwe)
Indawo yokuflasha 155.6°C
Uxinzelelo loMphunga 5.32E-05mmHg ku-25°C
Imbonakalo Iqinile
pKa 3.60±0.10(Kuqikelelwe)
Imeko yoGcino Itywinwe kwindawo eyomileyo, yoBubushushu beGumbi
Refractive Index 1.621
MDL MFCD08276864

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iikhowudi zoMngcipheko I-R22 – Iyingozi xa iginyiwe
R50/53 – Ityhefu kakhulu kwizinto eziphila emanzini, inokubangela iziphumo ezibi zexesha elide kwindawo ehlala emanzini.
Inkcazelo yoKhuseleko S60 – Esi sixhobo kunye nesingxobo saso kufuneka silahlwe njengenkunkuma eyingozi.
S61 –Kuphephe ukukhutshelwa kokusingqongileyo. Jonga kwimiyalelo ekhethekileyo / kumaphepha edatha yokhuseleko.
Izazisi ze-UN UN 2811 6.1/PG 3
WGK eJamani 3
Ikhowudi ye-HS 29163990
IKlasi yeeNgozi OKUTHUMEKAYO
Iqela lokuPakisha

 

Intshayelelo

I-3-Chloro-4-bromobenzoic acid i-organic compound. Oku kulandelayo sintshayelelo kubume bayo, ukusetyenziswa, indlela yokulungiselela kunye nolwazi lokhuseleko:

 

Umgangatho:

- Inkangeleko: 3-Chloro-4-bromobenzoic acid imhlophe ukuya kumthubi crystalline okuqinileyo.

- Ukunyibilika: Kuphantse kwanganyibiliki emanzini kwaye kunonyibiliko olulungileyo kwizinyibilikisi zendalo.

- Iimpawu zeMichiza: I-3-chloro-4-bromobenzoic acid inokuthi iqhube i-esterification, i-substitution kunye nezinye iimpendulo kwezinye iikhemikhali.

 

Sebenzisa:

- I-Chemical synthesis: I-3-chloro-4-bromobenzoic acid ingasetyenziselwa njengento yokuqala okanye ephakathi kwi-organic synthesis ye-synthesis yezinye izinto eziphilayo.

- Amayeza okubulala izitshabalalisi: Isenokusetyenziswa njengenye yezithako kwizibulali zinambuzane.

 

Indlela:

Indlela yokulungiselela i-3-chloro-4-bromobenzoic acid inokufumaneka ngokuphendula kwe-4-bromobenzoic acid kunye ne-bromophenyl i-chloride yobhedu (i-Cuprous bromochloride) i-catalyzed yi-acetic acid.

 

Ulwazi ngoKhuseleko:

- Ubutyhefu: I-3-chloro-4-bromobenzoic acid inokuba yingozi ebantwini kwaye ingaba nemiphumo ephazamisayo emehlweni, ulusu kunye nomgudu wokuphefumula. Uqhagamshelwano oluthe ngqo kufuneka luphetshwe.

- Impembelelo yokusingqongileyo: Nceda uthobele imithetho nemigaqo yokhuseleko lokusingqongileyo ukunqanda ukungcoliseka kwendalo.

- Ukugcinwa kunye nokuphatha: Kufuneka igcinwe kwindawo eyomileyo, epholileyo, kude nezinto ezinokutsha kunye ne-oxidants. Iiglavu ezifanelekileyo zokukhusela, iiglasi, kunye nempahla yokukhusela kufuneka zinxitywe xa uphathwa okanye usebenzisa.

 


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