2 5-Difluoro benzaldehyde(CAS# 2646-90-4)
| Iimpawu ezinobungozi | Xi – Irritant |
| Iikhowudi zoMngcipheko | 36/37/38 – Ukucaphukisa amehlo, inkqubo yokuphefumula kunye nolusu. |
| Inkcazelo yoKhuseleko | S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. S36 – Nxiba iimpahla ezifanelekileyo ezikhuselayo. I-S37/39 -Nxiba iiglavu ezifanelekileyo kunye nokukhusela amehlo / ubuso S36/37 – Nxiba iimpahla ezifanelekileyo zokukhusela kunye neeglavu. |
| Izazisi ze-UN | UN 1989 3/PG 3 |
| WGK eJamani | 3 |
| Ikhowudi ye-HS | 29130000 |
| Inqaku Lengozi | Iyacaphukisa |
| IKlasi yeeNgozi | 3.2 |
| Iqela lokuPakisha | III |
Intshayelelo
2,5-Difluorobenzaldehyde. Oku kulandelayo sintshayelelo kubume bayo, ukusetyenziswa, iindlela zokwenza kunye nolwazi lokhuseleko:
Umgangatho:
2,5-Difluorobenzaldehyde lulwelo olungenambala ukuya ekukhanyeni olutyheli olunophawu oluqinileyo lokutsha, ivumba elibi kwiqondo lobushushu begumbi. Ayinyibiliki emanzini kodwa inokunyibilika kwii-solvents eziphilayo ezifana ne-ethanol, i-toluene, njl.
Sebenzisa:
I-2,5-Difluorobenzaldehyde inoluhlu olubanzi lwezicelo kwi-organic synthesis. Ingasetyenziswa njenge-precursor ye-synthesis ye-aromatics compounds, i-paraphthalenedione derivatives, kunye ne-bioactive molekyuli. Inokusetyenziswa kwakhona kwi-synthesis ye-organometallic complexes, iingubo eziphezulu zokusebenza kunye nedayi.
Indlela:
I-2,5-difluorobenzaldehyde ingalungiswa ngokusabela kwe-benzaldehyde kunye ne-hydrogen fluoride. Le mpendulo idla ngokuqhutywa phantsi kweemeko ezineasidi kwaye inokufumaneka ngokusebenzisa i-hydrofluoric acid njengomthombo we-hydrogen fluoride.
Ulwazi ngoKhuseleko:
Kufuneka kuthathwe amanyathelo okhuseleko xa uphatha i-2,5-difluorobenzaldehyde. Inezinto ezicaphukisayo esikhumbeni, amehlo kunye nomgudu wokuphefumla. Iiglasi ezikhuselayo zeekhemikhali, iiglavu kunye nempahla yokukhusela kufuneka zinxitywe kwaye ukudibanisa ngqo kufuneka kugwenywe. Ukuba ingena emehlweni okanye esikhumbeni sakho, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune unyango ngokukhawuleza. Ngexesha lokusebenza, kufuneka igcinwe kude kwimithombo yomlilo kwaye iphephe umsi kunye nomphunga ukuphepha umlilo kunye nokudubula.
Esi sisingeniso esifutshane kwiipropati, ukusetyenziswa, iindlela zokulungiselela kunye nolwazi olukhuselekileyo lwe-2,5-difluorobenzaldehyde. Ukuba kuyimfuneko, qinisekisa ukuba uyayiqonda kwaye ulandela imimiselo yokhuseleko lwaselabhoratri efanelekileyo kunye nesikhokelo phambi kokuphatha okanye ukusetyenziswa.
