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2 5-Difluorobenzoic acid (CAS# 2991-28-8) Isithombe Esifakiwe
  • 2 5-Difluorobenzoic acid (CAS# 2991-28-8) 1

2 5-Difluorobenzoic acid (CAS# 2991-28-8)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C7H4F2O2
I-Molar Mass 158.1
Ukuminyana 1.3486 (isilinganiso)
I-Melting Point 132-134 °C (okhanyisiwe)
I-Boling Point 244.7±20.0 °C(Kubikezelwe)
I-Flash Point 101.8°C
Ukuncibilika kwamanzi Ayincibiliki emanzini.
Ukuncibilika i-acetone: i-soluble25mg/mL, icacile, iphuzi kancane
I-Vapor Presure 0.016mmHg ku-25°C
Ukubukeka I-crystalline powder emhlophe
Umbala Emhlophe
I-BRN 973351
pKa 2.93±0.10(Okubikezelwe)
Isimo Sesitoreji Kuvalwe endaweni eyomile, Ngezinga lokushisa Legumbi
I-MDL I-MFCD00002410
Izakhiwo Zomzimba Nezamakhemikhali Impushana emhlophe

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.
I-S37/39 – Gqoka amagilavu ​​afanelekile kanye nokuvikela iso/ubuso
I-WGK Germany 3
Ikhodi ye-HS 29163990
I-Hazard Class I-IRRITANT

 

Isingeniso

2,5-Difluorobenzoic acid.

Ukunyibilika: I-2,5-difluorobenzoic acid inokuncibilika okuphansi emanzini kanye nokuncibilika okuhle kuzincibilikisi zemvelo ezifana ne-ethanol ne-dimethylformamide.

I-Acidic: Kuyinto ene-asidi esabelayo ekwakheni usawoti ohambisanayo nama-ester.

 

I-2,5-Difluorobenzoic acid inezinhlelo zokusebenza ezibalulekile embonini, okuhlanganisa:

 

Izibulala-zinambuzane: zingasetshenziswa njengeziphakathi ekwenziweni kwezibulala-zinambuzane ezithile, njengezibulala-zinambuzane ze-oxalic acid.

I-Dye synthesis: Impahla eluhlaza engasetshenziswa ukuhlanganisa udayi othile.

 

Indlela yokulungiselela i-2,5-difluorobenzoic acid ngokuvamile ingenziwa ngezinyathelo ezilandelayo:

 

Okokuqala, ama-athomu amabili e-hydrogen ku-benzoic acid athathelwa indawo ama-athomu e-fluorine kusetshenziswa i-fluorinating agent ukuze athole i-2,5-difluorobenzoic acid.

 

Uma usebenzisa noma uphatha i-2,5-difluorobenzoic acid, kufanele kuqashelwe ukuthi unake ulwazi olulandelayo lokuphepha:

 

Gwema ukuhogela: Ukuchayeka isikhathi eside noma ukuhogela i-2,5-difluorobenzoic acid powder noma umhwamuko kufanele kugwenywe ukuze kugwenywe ukulimala kwendlela yokuphefumula namaphaphu.

Ukuthintana kwamehlo nesikhumba: Hlanza ngokushesha ngamanzi amaningi uma uthintana namehlo noma isikhumba.

Ukusetshenziswa kwezinto zokuzivikela: Amagilavu ​​okuzivikela afanelekile, izibuko, nezingubo zokuzivikela kufanele kugqokwe lapho uphatha i-2,5-difluorobenzoic acid.

Isexwayiso Sesitoreji: I-2,5-difluorobenzoic acid kufanele igcinwe endaweni eyomile, enomoya omuhle, igweme ukuthintana nezinto ezivuthayo, futhi kude nomlilo.

 

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