Ethyl 4 4-difluorovalerate (CAS# 659-72-3)
| Zizindikiro Zowopsa | Xn - Zowopsa |
| Zizindikiro Zowopsa | R10 - Yoyaka R18 - Zomwe zimagwiritsidwa ntchito zimatha kupanga mpweya woyaka / wophulika wa nthunzi-mpweya R20/22 - Zowopsa pokoka mpweya komanso ngati zitamezedwa. R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu. |
| Kufotokozera Zachitetezo | 26 - Mukakumana ndi maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha upangiri wamankhwala. |
| Ma ID a UN | UN 3272 3 / PGIII |
| WGK Germany | 3 |
Mawu Oyamba
Ethyl 4,4-difluoropentanoate, mankhwala chilinganizo C6H8F2O2, ndi pawiri organic. Zotsatirazi ndizofotokozera za chikhalidwe chake, kugwiritsa ntchito, kukonzekera ndi chitetezo:
Chilengedwe:
-Maonekedwe: madzi opanda mtundu
-Kulemera kwa mamolekyu: 146.12g/mol
-Kuwira: 142-143°C
-Kuchulukana: 1.119 g/mL
-Kusungunuka: Kusungunuka mu zosungunulira za organic, zosasungunuka m'madzi
-Kukhazikika: kukhazikika, koma kumakhudzidwa ndi kuwala, kutentha, okosijeni ndi zidulo
Gwiritsani ntchito:
-Ethyl 4,4-difluoropentanoate ndi yofunika organic kaphatikizidwe wapakatikati, amene ali osiyanasiyana ntchito pa mankhwala, mankhwala ndi mafakitale utoto. Itha kugwiritsidwa ntchito ngati kalambulabwalo wa kaphatikizidwe ka mankhwala, mankhwala ophera tizilombo ndi utoto, komanso pokonzekera zinthu zina zakuthupi.
- 4,4-difluoropentanoic acid ethyl ester angagwiritsidwe ntchito ngati zosungunulira, esterification reagent ndi chothandizira mu kaphatikizidwe organic.
Njira Yokonzekera:
Kukonzekera kwa ethyl 4,4-difluoropentanoate nthawi zambiri kumachitika ndi izi:
1. Choyamba, pentanoic acid imachitidwa ndi sulfure difluoride kuti ipeze 4,4-difluoropentanoic acid.
2.4,4-difluoropentanoic asidi ndiye anachita ndi Mowa pansi pa zinthu acidic kupanga ethyl 4,4-difluoropentanoate.
Zambiri Zachitetezo:
- 4,4-difluoropentanoic acid ethyl ester ndi madzi oyaka, osungira ndi opareshoni ayenera kusamala kupewa moto ndi lawi lotseguka.
- ntchito ayenera kuvala magalasi zoteteza ndi magolovesi, kupewa kukhudzana ndi khungu ndi inhalation ake nthunzi.
-Kugwira ntchito pamalo olowera mpweya wabwino kuti asalowe m'mapapo.
-Ngati mwagwira mwangozi kapena mwangozi, sambitsani nthawi yomweyo ndi madzi ambiri ndikupita kuchipatala mwamsanga.
