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3 4-Difluorobenzoic acid (CAS# 455-86-7) Umfanekiso obonakalayo
  • 3 4-Difluorobenzoic acid (CAS# 455-86-7) 1

3 4-Difluorobenzoic acid (CAS# 455-86-7)

Ipropati yeMichiza:

Ifomula yeemolekyuli C7H4F2O2
IMisa yeMolar 158.1
Ukuxinana 1.3486 (uqikelelo)
Indawo yokunyibilika 120-122°C(lit.)
Indawo yeBoling 257.0±20.0 °C(Kuqikelelwe)
Indawo yokuflasha 109.2°C
Ukunyibilika kwamanzi Inyibilika kancinane emanzini abandayo
Ukunyibilika I-Chloroform (Kancinci), iMethanol (Kancinci)
Uxinzelelo loMphunga 0.00766mmHg ku-25°C
Imbonakalo Ikristale emthubi eqaqambileyo
Umbala Mhlophe
I-BRN 2085848
pKa 3.80±0.10(Kuqikelelwe)
Imeko yoGcino Itywinwe kwindawo eyomileyo, yoBubushushu beGumbi
MDL MFCD00011672

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iimpawu ezinobungozi Xn – Iyingozi
Iikhowudi zoMngcipheko I-R22 – Iyingozi xa iginyiwe
R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu.
Inkcazelo yoKhuseleko S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango.
I-S37/39 -Nxiba iiglavu ezifanelekileyo kunye nokukhusela amehlo / ubuso
Izazisi ze-UN UN 2811
WGK eJamani 3
Ikhowudi ye-HS 29163900

 

Intshayelelo

3,4-Difluorobenzoic acid. Oku kulandelayo kukwazisa ngobume bayo, ukusetyenziswa, indlela yokuvelisa kunye nolwazi lokhuseleko:

 

Umgangatho:

- 3,4-Difluorobenzoic acid yikristale emhlophe eqinileyo enevumba elimnandi.

- Iqinile kwiqondo lobushushu begumbi kwaye inokunyibilika kwii-solvents eziphilayo ezifana ne-alcohols, i-ethers, njl., kwaye inonyibiliko olulinganiselweyo emanzini.

- I-3,4-Difluorobenzoic acid i-acidic kwaye isabela nge-alkali ukwenza ityuwa ehambelanayo.

 

Sebenzisa:

- I-3,4-difluorobenzoic acid isetyenziswa ngokubanzi njengento ebalulekileyo ephakathi kunye nekrwada kwi-organic synthesis.

 

Indlela:

- Zininzi iindlela zokulungiselela i-3,4-difluorobenzoic acid, enye yazo isetyenziswa ngokuqhelekileyo yi-fluorinating acid fluorinated.

- Indlela ethile yokulungiselela ibandakanya ukukhethwa kwe-agent ye-fluorinating kunye nokulawulwa kweemeko zokuphendula, i-fluorinating agents eziqhelekileyo ziyi-hydrogen fluoride, i-sulfur polyfluoride, njl.

 

Ulwazi ngoKhuseleko:

- 3,4-Difluorobenzoic acid yikhemikhali kwaye kufuneka ilandelwe ngokuhambelana neenkqubo ezifanelekileyo zokhuseleko kunye nezixhobo ezifanelekileyo zokukhusela iikhemikhali.

- Inokuba nefuthe elicaphukisayo emehlweni, ulusu, kunye nendlela yokuphefumla kwaye kufuneka ihlanjwe ngokukhawuleza emva koqhagamshelwano.

- Ngexesha lokunyanga, ukudibana nee-oxidants ezinamandla kunye ne-acids eqinile kufuneka kugwenywe ukukhusela ukuphendula okuyingozi.

- I-3,4-i-Difluorobenzoic acid kufuneka igcinwe kwindawo epholileyo, eyomileyo, engenamoya, kude nomlilo kunye nemithombo yokushisa.

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