3 4-Dibromobenzoic acid (CAS# 619-03-4)

Isakhiwo Samakhemikhali:

I-Molecular Formula	I-C7H4Br2O2
I-Molar Mass	279.91
Ukuminyana	2.083±0.06 g/cm3(Kubikezelwe)
I-Melting Point	235-236 °C
I-Boling Point	356.0±32.0 °C(Kubikezelwe)
I-Flash Point	169.1°C
I-Vapor Presure	1.1E-05mmHg ku-25°C
pKa	3.58±0.10(Okubikezelwe)
Isimo Sesitoreji	Kuvalwe endaweni eyomile, Ngezinga lokushisa Legumbi
I-Refractive Index	1.642

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Isingeniso

I-3,4-Dibromobenzoic acid iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso sobunjalo bayo, ukusetshenziswa, indlela yokulungiselela kanye nolwazi lokuphepha:

Ikhwalithi:

I-3,4-Dibromobenzoic acid iyikristalu engenambala enephunga elimnandi elikhethekile. Iqinile ekukhanyeni nasemoyeni, kodwa ingabola emazingeni okushisa aphezulu.

Sebenzisa:

I-3,4-Dibromobenzoic acid ingasetshenziswa ekuphenduleni okuhlukene kanye nama-reagents ku-organic synthesis. Ingasetshenziswa futhi njengenye yezinto zokwenziwa kwe-organic light-emitting diode (OLEDs).

Indlela:

Ukulungiswa kwe-3,4-dibromobenzoic acid kungatholakala ngokuxutshwa kwesisombululo se-bromobenzoic acid. I-Benzoic acid iqala ukuncibilika ku-solvent efanele bese i-bromine yengezwa kancane. Ngemuva kokuthi ukusabela kuqediwe, umkhiqizo utholakala ngokuhlunga kanye ne-crystallization.

Ulwazi lokuphepha: Kungokwesigaba se-organic halides futhi kunobungozi obungaba yingozi kubantu nakwindawo ezungezile. Gwema ukuthintana ngqo nesikhumba namehlo, futhi qinisekisa ukuthi usebenza endaweni yaselabhorethri engenawo umoya. Izinyathelo ezifanele zokuzivikela ezinjengamagilavu, izibuko zokuphepha, nejazi laselabhu kufanele zithathwe lapho kusingathwa lesi sithako. Imfucuza kufanele ilahlwe ngendlela efanele ukuze kuhambisane nemithetho yendawo yendawo.

Okwedlule: 7-Nitroquinoline (CAS# 613-51-4)

Olandelayo: Okuthunyelwe Okulandelayo

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