isibhengezo_sekhasi

umkhiqizo

2,4-Dibromoaniline(CAS#615-57-6)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C6H5Br2N
I-Molar Mass 250.92
Ukuminyana 2.26
I-Melting Point 78-80 °C (okhanyisiwe)
I-Boling Point 156 °C (24 mmHg)
I-Flash Point 156°C/24mm
Ukuncibilika kwamanzi Ayincibiliki emanzini
I-Vapor Presure 0.0095mmHg ku-25°C
Ukubukeka powder kuya kukristalu
Umbala Okumhlophe kuya kokuphuzi Okukhanyayo
I-BRN 2206653
pKa 1.83±0.10(Okubikezelwe)
Isimo Sesitoreji Gcina ngaphansi kuka +30°C.
I-Refractive Index 1.5800 (isilinganiso)

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Amakhodi Engozi R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba.
I-R33 – Ingozi yemiphumela eqoqwayo
R20/21/22 – Kuyingozi ngokuhogela umoya, ukuthintana nesikhumba futhi uma ukugwinyile.
R51/53 – Ukuba nobuthi ezintweni eziphila emanzini, kungabangela imiphumela emibi yesikhathi eside endaweni yasemanzini.
R25 – Kunobuthi uma ugwinywe
Incazelo Yokuphepha S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu ​​kanye nokuvikela iso/ubuso.
S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha.
I-S61 - Gwema ukudedelwa endaweni. Bheka imiyalelo ekhethekile / amaphepha edatha okuphepha.
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 3
I-TSCA T
Ikhodi ye-HS 29214210
I-Hazard Class 6.1
Iqembu Lokupakisha III

 

Isingeniso

I-2,4-Dibromoaniline iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso sezakhiwo zayo, ukusetshenziswa kwayo, izindlela zokukhiqiza kanye nolwazi lokuphepha:

 

Ikhwalithi:

I-2,4-Dibromoaniline iyikristalu engenambala encibilika kuzincibilikisi eziphilayo njenge-ethanol, i-acetone ne-ether, futhi inyibilika kancane emanzini. Inephunga elimnandi elinamandla.

 

Sebenzisa:

I-2,4-Dibromoaniline inohlu olubanzi lwezinhlelo zokusebenza ku-organic synthesis. Ingasetshenziswa njengesandulela samadayi nezingulube, futhi ingasetshenziselwa ukulungisa izinto ezisebenzayo ezifana nezikhanyisi ze-fluorescent.

 

Indlela:

Indlela yokulungiselela ye-2,4-dibromoaniline ingatholwa ngokusabela kwe-bromination phakathi kwe-aniline ne-bromine ngaphansi kwezimo zokusabela ezifanele. Indlela evame ukusetshenziswa kakhulu yokulungiselela ukufaka i-bromine ku-aniline ngaphansi kwezimo ze-alkaline, bese usabela ngokunyakazisa izinga lokushisa njalo, futhi ekugcineni udlule ezinyathelweni zokuhlunga, ukugeza kanye nekristalu ukuze uthole umkhiqizo ohlosiwe.

 

Ulwazi Lokuphepha:

I-2,4-Dibromoaniline iyinhlanganisela ecasulayo engase ibangele ukucasuka nokusha lapho uthinta isikhumba namehlo. Amagilavu ​​okuvikela afanelekile, izibuko, nezingubo zokuzivikela kufanele zigqokwe ngesikhathi sokuhlinzwa ukuze kugwenywe ukuhogela inkungu. Kufanele isetshenziswe endaweni enomoya omuhle futhi igweme ukuthintana nezinto ezivuthayo. Kufanele kuqashelwe ukuthobela imithetho efanele yokuphepha ngesikhathi sokugcinwa kanye nokuphathwa ukuze kugwenywe ukuthungela kanye nogesi omile.


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