iphepha_ibhena

imveliso

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

Ipropati yeMichiza:

Ifomula yeemolekyuli I-C6H5Br2N
IMisa yeMolar 250.92
Ukuxinana 2.26
Indawo yokunyibilika 78-80 °C (lit.)
Indawo yeBoling 156 °C (24 mmHg)
Indawo yokuflasha 156°C/24mm
Ukunyibilika kwamanzi Ayinyibiliki emanzini
Uxinzelelo loMphunga 0.0095mmHg ku-25°C
Imbonakalo umgubo kwikristale
Umbala Mhlophe ukuya kumthubi oKhanyayo
I-BRN 2206653
pKa 1.83±0.10(Kuqikelelwe)
Imeko yoGcino Gcina ngaphantsi +30°C.
Refractive Index 1.5800 (uqikelelo)

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iikhowudi zoMngcipheko R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu.
R33 – Ingozi yeziphumo ezongezelekayo
I-R20/21/22 – Iyingozi ngokuphefumla, xa udibana nolusu naxa uginyiwe.
R51/53 – Ityhefu kwizinto eziphila emanzini, inokubangela iziphumo ezibi zexesha elide kwindawo ehlala emanzini.
I-R25 – Inetyhefu xa iginyiwe
Inkcazelo yoKhuseleko S36/37/39 – Nxiba iimpahla ezikhuselayo ezifanelekileyo, iiglavu kunye nokhuseleko lwamehlo/ubuso.
S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango.
S61 –Kuphephe ukukhutshelwa kokusingqongileyo. Jonga kwimiyalelo ekhethekileyo / kumaphepha edatha yokhuseleko.
S45 - Kwimeko yengozi okanye ukuba uziva ungaphilanga, funa iingcebiso zonyango ngokukhawuleza (bonisa ileyibhile nanini na kunokwenzeka.)
Izazisi ze-UN 2811
WGK eJamani 3
I-TSCA T
Ikhowudi ye-HS 29214210
IKlasi yeeNgozi 6.1
Iqela lokuPakisha III

 

Intshayelelo

I-2,4-i-Dibromoaniline yi-organic compound. Oku kulandelayo sintshayelelo kwiipropati zayo, ukusetyenziswa, iindlela zokuvelisa kunye nolwazi lokhuseleko:

 

Umgangatho:

I-2,4-Dibromoaniline yikristale engenambala enyibilikayo kwii-solvents eziphilayo ezifana ne-ethanol, i-acetone kunye ne-ether, kwaye i-soluble kancinane emanzini. Inevumba elibukhali elibukhali.

 

Sebenzisa:

I-2,4-Dibromoaniline inoluhlu olubanzi lwezicelo kwi-organic synthesis. Ingasetyenziswa njenge-precursor yeedayi kunye nee-pigments, kwaye ingasetyenziselwa ukulungisa izinto ezisebenzayo ezifana nezikhanyisi ze-fluorescent.

 

Indlela:

Indlela yokulungiselela i-2,4-dibromoaniline inokufumaneka ngokusabela kwe-bromination phakathi kwe-aniline kunye ne-bromine phantsi kweemeko ezifanelekileyo zokusabela. Indlela yokulungiselela esetyenziswa ngokuqhelekileyo yongeza i-bromine kwi-aniline phantsi kweemeko ze-alkaline, emva koko iphendule ngokuvuselela ukushisa rhoqo, kwaye ekugqibeleni uhambe ngamanyathelo okucoca, ukuhlamba kunye ne-crystallization ukuze ufumane imveliso ejoliswe kuyo.

 

Ulwazi ngoKhuseleko:

I-2,4-i-Dibromoaniline yinto ephazamisayo enokubangela ukucaphuka kunye nokutshisa xa udibana nolusu kunye namehlo. Iiglavu ezifanelekileyo zokukhusela, iiglasi, kunye nempahla yokukhusela kufuneka zinxitywe ngexesha lokusebenza ukuphepha ukuphefumla umphunga. Kufuneka iqhutywe kwindawo enomoya kwaye ugweme ukudibanisa nezinto ezinokutsha. Ukunyamekela kufuneka kuthatyathwe ukuthobela imimiselo yokhuseleko efanelekileyo ngexesha lokugcinwa kunye nokuphatha ukuphepha ukutsha kunye nombane ongatshintshiyo.


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