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3 5-difluorobenzoic acid (CAS# 455-40-3) Isithombe Esifakiwe
  • 3 5-difluorobenzoic acid (CAS# 455-40-3) 1

3 5-difluorobenzoic acid (CAS# 455-40-3)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C7H4F2O2
I-Molar Mass 158.1
Ukuminyana 1.3486 (isilinganiso)
I-Melting Point 121-123 °C (okhanyisiwe)
I-Boling Point 243.2±20.0 °C(Kubikezelwe)
I-Flash Point 100.9°C
Ukuncibilika I-Chloroform (Encibilikayo), i-Methanol (Kancane)
I-Vapor Presure 0.0175mmHg ku-25°C
Ukubukeka Impushana emhlophe
Umbala Okumhlophe kuya Kuphuzi Okuphaphathekile
I-BRN 1940680
pKa 3.52±0.10(Okubikezelwe)
Isimo Sesitoreji Kuvalwe endaweni eyomile, Ngezinga lokushisa Legumbi
I-MDL I-MFCD00010323
Izakhiwo Zomzimba Nezamakhemikhali Iphoyinti lokuncibilika 118-123°C

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

I-3,5-Difluorobenzoic acid iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso sezakhiwo, ukusetshenziswa, izindlela zokulungiselela kanye nolwazi lokuphepha lwale nhlanganisela:

 

Ikhwalithi:

- 3,5-Difluorobenzoic acid iyikristalu engenambala noma i-crystalline powder emhlophe.

- Cishe ayincibiliki emanzini ngamazinga okushisa asekamelweni, kodwa incibilika kuzincibilikisi zemvelo ezifana ne-ethanol, i-ether, njll.

- Inhlanganisela inephunga elimnandi elinamandla futhi iyagqwala.

 

Sebenzisa:

- I-3,5-Difluorobenzoic acid isetshenziswa ngokuyinhloko njenge-intermediate ebalulekile kanye ne-reagent ku-organic synthesis.

- I-compound ingasetshenziswa ekuphenduleni kwe-fluorination kanye nokuhlangana kokusabela kwenhlanganisela yephunga elimnandi ekuphenduleni kwe-organic synthesis.

 

Indlela:

- Indlela yokulungiselela ye-3,5-difluorobenzoic acid ingatholakala ngokusabela kwe-benzoic acid ne-hydrofluoric acid phambi kwe-catalyst.

- Ngaphansi kwezimo zokusabela, i-benzoic acid ixubene ne-hydrofluoric acid futhi iyashiswa, futhi ukusabela kwenziwa ngaphansi kwesenzo se-catalyst ukukhiqiza i-3,5-difluorobenzoic acid.

 

Ulwazi Lokuphepha:

- I-3,5-Difluorobenzoic acid iyinhlanganisela ecasulayo engabangela ukucasuka lapho uthinta isikhumba namehlo, futhi izinto zokuzivikela ezifanele kufanele zigqokwe.

- Ukunakekelwa kufanele kuthathwe ukuze kugwenywe ukuthintana nama-oxidizing agents anamandla kanye ne-alkaline eqinile lapho usebenzisa noma ugcina lesi sakhi ukuvimbela ukusabela okuyingozi.

- Gwema ukuhogela umhwamuko omningi we-3,5-difluorobenzoic acid, njengoba unephunga elimnandi.

 

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