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2 5-Difluorobenzoic acid (CAS# 2991-28-8) Umfanekiso obonakalayo
  • 2 5-Difluorobenzoic acid (CAS# 2991-28-8) 1

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

Ipropati yeMichiza:

Ifomula yeemolekyuli C7H4F2O2
IMisa yeMolar 158.1
Ukuxinana 1.3486 (uqikelelo)
Indawo yokunyibilika 132-134 °C (lit.)
Indawo yeBoling 244.7±20.0 °C(Kuxelwe kwangaphambili)
Indawo yokuflasha 101.8°C
Ukunyibilika kwamanzi Ayinyibiliki emanzini.
Ukunyibilika I-acetone: i-soluble25mg / mL, icacile, i-fiintly yellow
Uxinzelelo loMphunga 0.016mmHg ku-25°C
Imbonakalo Umgubo omhlophe wekristale
Umbala Mhlophe
I-BRN 973351
pKa 2.93±0.10(Kuqikelelwe)
Imeko yoGcino Itywinwe kwindawo eyomileyo, yoBubushushu beGumbi
MDL MFCD00002410
IiPropati zoMzimba kunye nezeMichiza Umgubo omhlophe

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iimpawu ezinobungozi Xi – Irritant
Iikhowudi zoMngcipheko 36/37/38 – Ukucaphukisa amehlo, inkqubo yokuphefumula 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
WGK eJamani 3
Ikhowudi ye-HS 29163990
IKlasi yeeNgozi OKUTHUMEKAYO

 

Intshayelelo

2,5-Difluorobenzoic acid.

I-Solubility: I-2,5-difluorobenzoic acid ine-solubility ephantsi emanzini kunye ne-solubility efanelekileyo kwii-solvents eziphilayo ezifana ne-ethanol kunye ne-dimethylformamide.

I-Acidic: Yinto eneasidi echaphazela ukwenza iityuwa ezihambelanayo kunye nee-esters.

 

I-2,5-Difluorobenzoic acid inezicelo ezibalulekileyo kwishishini, kubandakanya:

 

Izibulali zinambuzane: zinokusetyenziswa njengeziphakathi ekwenzeni izitshabalalisi ezithile, ezifana nemichiza ye-oxalic acid.

Idayi synthesis: Yimathiriyeli ekrwada enokusetyenziswa ukwenza idayi ethile.

 

Indlela yokulungiselela i-2,5-difluorobenzoic acid ngokubanzi inokuqhutywa ngala manyathelo alandelayo:

 

Okokuqala, iiathom ezimbini ze-hydrogen kwi-benzoic acid zitshintshwa zii-athomu ze-fluorine zisebenzisa i-agent ye-fluorinating ukufumana i-2,5-difluorobenzoic acid.

 

Xa usebenzisa okanye ukuphatha i-2,5-difluorobenzoic acid, isilumkiso kufuneka sithathelwe ingqalelo kule ngcaciso ilandelayo yokhuseleko:

 

Gwema ukuphefumla: Ukubonakaliswa kwexesha elide okanye ukuphefumla kwe-2,5-difluorobenzoic acid powder okanye umphunga kufuneka kugwenywe ukuphepha umonakalo kwindlela yokuphefumula kunye nemiphunga.

Ukudibana kwamehlo nolusu: Sula ngokukhawuleza ngamanzi amaninzi ukuba udibana namehlo okanye ulusu.

Ukusetyenziswa kwezixhobo zokuzikhusela: Iiglavu ezifanelekileyo zokuzikhusela, iiglasi, kunye nempahla yokuzikhusela kufuneka zinxitywe xa uphethe i-2,5-difluorobenzoic acid.

Isilumkiso sokugcina: I-2,5-difluorobenzoic acid kufuneka igcinwe kwindawo eyomileyo, enomoya, ugweme ukudibanisa nezinto ezivuthayo, kwaye kude nomlilo.

 

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