Ethyl 4 4-difluorovalerate (CAS# 659-72-3)
| Hazard Symbols | Xn – Zvinokuvadza |
| Risk Codes | R10 - Inopfuta moto R18 – Mukushandiswa kunogona kuumba musanganiswa wemhepo unobvira/ unoputika R20/22 – Zvinokuvadza nekufema uye kana ikamedzwa. R36/37/38 - Kushungurudza maziso, kufema system uye ganda. |
| Tsanangudzo Yekuchengetedza | 26 – Kana wasangana nemaziso, sukurudza nekukasira nemvura yakawanda uye tsvaga rubatsiro kuna chiremba. |
| UN IDs | UN 3272 3 / PGIII |
| WGK Germany | 3 |
Nhanganyaya
Ethyl 4,4-difluoropentanoate, kemikari formula C6H8F2O2, is an organic compound. Inotevera rondedzero yehunhu hwayo, kushandiswa, kugadzirira uye ruzivo rwekuchengetedza:
Zvakasikwa:
-Kuonekwa: mvura isina ruvara
-Molecular uremu: 146.12g / mol
-Kubikira Poindi: 142-143°C
-Kuwanda: 1.119 g/mL
-Solubility: Soluble mune organic solvents, isinganyungudika mumvura
-Kugadzikana: kugadzikana, asi kunokonzerwa nechiedza, kupisa, oxidants uye acids
Shandisa:
-Ethyl 4,4-difluoropentanoate yakakosha organic synthesis yepakati, ine huwandu hwakawanda hwekushandisa muminda yemishonga, pesticide uye dhayi indasitiri. Inogona kushandiswa sechinhu chinotangira pakugadzirwa kwemishonga, mishonga yezvipembenene uye dhayi, pamwe chete nekugadzirwa kwemamwe organic compounds.
- 4,4-difluoropentanoic acid ethyl ester inogona kushandiswa se solvent, esterification reagent uye catalyst mu organic synthesis.
Kugadzirira nzira:
Kugadzirira kwe ethyl 4,4-difluoropentanoate kunowanzoitwa nematanho anotevera:
1. Kutanga, pentanoic acid inobatwa ne sulfur difluoride kuti iwane 4,4-difluoropentanoic acid.
2.4,4-difluoropentanoic acid inobva yaitwa ne ethanol pasi pemamiriro e acidic kuti ibudise ethyl 4,4-difluoropentanoate.
Zvekuchengetedza
- 4,4-difluoropentanoic acid ethyl ester imvura inopfuta, kuchengetedza uye kushanda kunofanira kungwarira kudzivirira moto uye kuvhurika murazvo.
-kushandiswa kunofanira kupfeka magirazi ekudzivirira uye magirafu, kudzivisa kusangana neganda uye inhalation yemhute yayo.
-Shandisa munzvimbo ine mhepo inofefetera kuti usapinda mukufema.
-Kana ukabatwa netsaona kana kutorwa nekukanganisa, sukurudza nekukurumidza nemvura yakawanda uye tsvaga kurapwa nekukurumidza.
