3 5-difluoropyridine (CAS# 71902-33-5)
| Zizindikiro Zowopsa | R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu. R50 - Ndiwowopsa kwambiri ku zamoyo zam'madzi R20/21/22 - Zowopsa pokoka mpweya, kukhudzana ndi khungu komanso kumeza. R11 - Yoyaka Kwambiri |
| Kufotokozera Zachitetezo | S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala. S36/37/39 - Valani zovala zodzitchinjiriza zoyenera, magolovesi ndi chitetezo chamaso / kumaso. S61 - Pewani kumasulidwa ku chilengedwe. Onani malangizo apadera / mapepala achitetezo. S36/37 - Valani zovala zoyenera zodzitchinjiriza ndi magolovesi. |
| Ma ID a UN | 1993 |
| WGK Germany | 3 |
| HS kodi | 29333990 |
| Zowopsa | Zoyaka Kwambiri / Zokwiyitsa |
| Kalasi Yowopsa | 3 |
| Packing Group | II |
Mawu Oyamba
3,5-Difluoropyridine ndi organic pawiri ndi mankhwala chilinganizo C5H3F2N. Zotsatirazi ndizofotokozera za chikhalidwe chake, kagwiritsidwe ntchito, kapangidwe ndi chitetezo:
Chilengedwe:
-Maonekedwe: madzi opanda mtundu
-Posungunuka: -53 ℃
- Malo otentha: 114-116 ℃
-Kuchulukana: 1.32g/cm³
-Kusungunuka: Kusungunuka m'madzi ndi zosungunulira zambiri.
Gwiritsani ntchito:
- 3,5-Difluoropyridine imagwiritsidwa ntchito makamaka ngati zopangira zofunikira pakupanga organic. Itha kugwiritsidwa ntchito popanga mankhwala ophera tizilombo, mankhwala ndi mankhwala ena achilengedwe.
-Itha kugwiritsidwanso ntchito ngati reagent yamankhwala pakusanthula ndi kafukufuku wamankhwala.
Njira Yokonzekera:
Kukonzekera kwa 3,5-Difluoropyridine nthawi zambiri kumachitika ndi imodzi mwa njira zotsatirazi:
-Kuyambira pa pyrimidine, choyamba yambitsani maatomu a fluorine pa pyrimidine, kenaka yikani maatomu a fluorine pamalo a 3 ndi 5.
- zotengedwa 3,5-difluoro chloropyrimidine kapena 3,5-difluoro bromopyrimidine anachita.
Zambiri Zachitetezo:
- 3,5-Difluoropyridine ikhoza kukhala yovulaza thupi la munthu. Kuwonetsedwa kwa mankhwalawa kungayambitse kuyabwa kwa maso ndi khungu. Chifukwa chake, ndikofunikira kutenga njira zodzitetezera, monga kuvala magolovesi oyenerera, magalasi ndi zovala zodzitetezera.
-Pogwira kapena kupuma 3,5-Difluoropyridine, malo okhudzidwawo ayenera kutsukidwa mwamsanga ndikulangizidwa ndi dokotala.
-Pa nthawi yosungira ndi kunyamula, chisamaliro chiyenera kutengedwa kuti musagwirizane ndi ma oxidants amphamvu ndi ma asidi amphamvu.
Chonde dziwani kuti mukamagwiritsa ntchito ndikugwiritsa ntchito 3,5-Difluoropyridine, nthawi zonse tsatirani njira zolondola zachitetezo cha labotale ndikulozera kumasamba otetezedwa ndi malangizo.
