Ftorafur (CAS#17902-23-7)
| Zizindikiro Zowopsa | T - Zowopsa |
| Zizindikiro Zowopsa | 23/24/25 - Poizoni pokoka mpweya, kukhudzana ndi khungu komanso kumeza. |
| Kufotokozera Zachitetezo | S22 - Osapumira fumbi. S36/37/39 - Valani zovala zodzitchinjiriza zoyenera, magolovesi ndi chitetezo chamaso / kumaso. S45 - Pakachitika ngozi kapena ngati simukumva bwino, funsani upangiri wachipatala nthawi yomweyo (onetsani chizindikirocho ngati kuli kotheka.) |
| Ma ID a UN | UN 2811 6.1/PG 2 |
| WGK Germany | 3 |
| Mtengo wa RTECS | YR0450000 |
| HS kodi | 29349990 |
| Kalasi Yowopsa | 6.1 |
| Packing Group | II |
| Poizoni | LD50 mu mbewa (mg / kg): 900 pakamwa (masiku 3) (Yasumoto); 750 ip (FR 1574684), idanenedwanso kuti 1150 ip (Smart) |
Mawu Oyamba
Trifluoromethylation ndi organic chemical reaction momwe magulu a trifluoromethyl amatha kulowetsedwa mu mamolekyu a organic pogwiritsa ntchito tegafluor reagents monga TMSCF3.
Makhalidwe a tegafluor:
- Tegafluor ndi njira yofunikira yosinthira gulu, yomwe imatha kuyambitsa magulu a trifluoromethyl okhala ndi kachulukidwe kake ka ma elekitironi kuti asinthe mawonekedwe akuthupi ndi mankhwala a mamolekyu.
- Magulu a Trifluoromethyl ali ndi kukopa kolimba kwa ma elekitironi, komwe kumatha kuonjezera electrophilicity ya molekyulu ndi kusungunuka kwa zosungunulira.
- Zopangidwa ndi tegafluor reaction nthawi zambiri zimakhala zokhazikika komanso zogwira ntchito mwachilengedwe.
Kugwiritsa ntchito tegafluor:
- Pankhani ya sayansi yazinthu, tegafluor imatha kusintha mawonekedwe azinthu, kukulitsa kukhazikika kwawo komanso kukana kwanyengo.
Njira yokonzekera tegafluor:
- Zomwe zimagwiritsidwa ntchito kwambiri ndi tegafluor reagents ndi: TMSCF3, Ruppert-Prakash reagent, etc.
- Zochita za Tegafluor nthawi zambiri zimachitika mumlengalenga, pogwiritsa ntchito chosungunulira cha inert (mwachitsanzo, methylene chloride, chloroform) ngati sing'anga.
- Zomwe zimachitika nthawi zambiri zimafuna kutentha kwambiri komanso nthawi yayitali yochitapo kanthu, ndipo nthawi zambiri zimafunika kuwonjezeredwa chothandizira (mwachitsanzo, chothandizira chamkuwa).
Zambiri zachitetezo pa tegafur:
- Tegafluor reagents ndi poizoni ndi dzimbiri, ndipo kusamala koyenera kuyenera kutengedwa pogwira.
- Mipweya (monga haidrojeni fluoride) yomwe imapangidwa panthawiyi ndi yowopsa ndipo imayenera kuyendetsedwa ndi mpweya wabwino.
- Chisamaliro chiyenera kutengedwa kuti musakhudzidwe ndi madzi kapena chinyezi pakugwira ntchito kuti mupewe zovuta zomwe sizingasinthe.
- Reactants ndi zinthu zomwe zili pansi pa tegafluor reaction zimafunikira chisamaliro choyenera ndikutaya zinyalala.
