3 5-DIBROMO-2-FLUOROPYRIDINE (CAS# 473596-07-5)
| Zizindikiro Zowopsa | R20/21/22 - Zowopsa pokoka mpweya, kukhudzana ndi khungu komanso kumeza. R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu. R25 - Poizoni ngati atamezedwa |
| Kufotokozera Zachitetezo | S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala. S36 - Valani zovala zoyenera zodzitetezera. S45 - Pakachitika ngozi kapena ngati simukumva bwino, funsani upangiri wachipatala nthawi yomweyo (onetsani chizindikirocho ngati kuli kotheka.) |
| Kalasi Yowopsa | ZOKWIYA |
Mawu Oyamba
3,5-Dibromo-2-fluoropyridine ndi organic pawiri ndi mankhwala chilinganizo C5H2Br2FN. Zotsatirazi ndizofotokozera za chikhalidwe chake, kagwiritsidwe ntchito, kapangidwe ndi chitetezo:
Chilengedwe:
- 3,5-Dibromo-2-fluoropyridine ndi gulu lolimba lokhala ndi maonekedwe oyera a crystalline.
-Kusungunuka kwake ndi 74-76 ℃, ndipo kuwira kwake ndi 238-240 ℃.
-Sisungunuka m'madzi kutentha, koma imatha kusungunuka muzinthu zina zosungunulira monga ether ndi ethanol.
Gwiritsani ntchito:
- 3,5-Dibromo-2-fluoropyridine ndi yofunika yapakatikati pawiri kwambiri ntchito organic synthesis zochita.
-Itha kugwiritsidwa ntchito ngati zida zopangira organic photovoltaic, komanso ingagwiritsidwe ntchito pokonzekera mankhwala, utoto ndi mankhwala ophera tizilombo.
Njira Yokonzekera:
- 3,5-Dibromo-2-fluoropyridine ikhoza kukonzedwa ndi zomwe pyridine iodide ndi bromide ya cuprous.
-Choyamba sungunulani cuprous bromide ndi pyridine iodide mu dimethyl sulfoxide pa kutentha kwa firiji kuti mupange reactant, kenaka yikani siliva fluoride dropwise pa kutentha kochepa, ndipo potsiriza kutentha mpaka zomwe zachitika.
Zambiri Zachitetezo:
- 3,5-Dibromo-2-fluoropyridine imakwiyitsa khungu ndi maso, ndipo njira zotetezera ziyenera kuyang'aniridwa pamene mukukumana.
-Samalani ndi mpweya wabwino mukamagwiritsa ntchito mankhwalawa.
- Imawola pa kutentha kwakukulu idzatulutsa mpweya woipa, ndipo m'pofunika kupewa kukhudzidwa ndi moto wotseguka kapena malo otentha kwambiri.
-Sungani motsekedwa ndipo pewani kukhudzana ndi ma oxidants ndi ma acid amphamvu kuti mupewe zoopsa.
