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2 4-Dibromobenzoic acid (CAS# 611-00-7) Isithombe Esifakiwe
  • 2 4-Dibromobenzoic acid (CAS# 611-00-7) 1

2 4-Dibromobenzoic acid (CAS# 611-00-7)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C7H4Br2O2
I-Molar Mass 279.91
Ukuminyana 1.9661 (isilinganiso esinzima)
I-Melting Point 171.0 kuya ku-175.0 °C
I-Boling Point 336.6±32.0 °C(Kubikezelwe)
I-Flash Point 157.3°C
Ukuncibilika encibilikayo ku-Methanol
I-Vapor Presure 4.36E-05mmHg ku-25°C
Ukubukeka Impushana ephuzi
Umbala Okumhlophe kuya Kucishe kube mhlophe
pKa 2.62±0.10(Okubikezelwe)
Isimo Sesitoreji Kuvalwe endaweni eyomile, Ngezinga lokushisa Legumbi
I-Refractive Index 1.4970 (isilinganiso)
Izakhiwo Zomzimba Nezamakhemikhali Impushana ephuzi noma amakristalu afana neqabunga. Iphuzu Elincibilikayo 174 °c (i-sublimation). Incibilika otshwaleni ne-ether, inyibilika kancane emanzini ashisayo, ingavuthwa ngomhwamuko wamanzi.

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izimpawu Eziyingozi Xi - Irritant
Amakhodi Engozi 36/37/38 - Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba.
Incazelo Yokuphepha S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha.
S37 – Gqoka amagilavu ​​afanelekile.
Ikhodi ye-HS 29163990

 

Isingeniso

I-2,4-Dibromobenzoic acid iyinhlanganisela yezinto eziphilayo. I-crystalline emhlophe noma i-crystalline powder. Okulandelayo yisingeniso sezakhiwo, ukusetshenziswa, izindlela zokulungiselela kanye nolwazi lokuphepha lwe-2,4-dibromobenzoic acid:

 

Ikhwalithi:

- Ukubukeka: Amakristalu amhlophe noma i-crystalline powder.

- Ukunyibilika: Kuncibilika kuzincibilikisi eziphilayo njenge-ethanol, i-ether ne-chloroform, engancibiliki emanzini.

 

Sebenzisa:

- Ingasetshenziswa futhi njengesithako se-antioxidant nerabha, phakathi kwezinye izinto.

 

Indlela:

- Indlela yokulungiselela ye-2,4-dibromobenzoic acid itholakala ikakhulukazi ngokusabela kwe-bromination ye-benzoic acid. Esinyathelweni esiqondile, i-benzoic acid iqala ukuhlangana ne-bromine phambi kwe-acid catalyst yakhe i-bromobenzoic acid. Bese, i-bromobenzoic acid i-hydrolyzed ukunikeza i-2,4-dibromobenzoic acid.

 

Ulwazi Lokuphepha:

- 2,4-Dibromobenzoic acid izinzile uma kuqhathaniswa negumbi lokushisa, kodwa ingabola emazingeni okushisa aphezulu noma amalangabi avuleke ukuze kukhiqizwe amagesi anobuthi.

- Iyacasula futhi ingabangela ukucasuka nokungakhululeki lapho uthintana nesikhumba, amehlo, kanye nomgudu wokuphefumula.

- Izinyathelo ezifanele zokuzivikela ezinjengamagilavu ​​okuzivikela, ukuvikela iso, kanye nemishini yokuvikela ukuphefumula kufanele kuthathwe lapho kusetshenziswa, kugcinwa, futhi kusingathwa.

- Kufanele igcinwe kude nemithombo yomlilo kanye nama-oxidizing futhi igcinwe endaweni epholile, nengena umoya.

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