2-Chloro-5-fluorobenzaldehyde (CAS# 84194-30-9)
Ubungozi Nokuphepha
| Amakhodi Engozi | I-R22 – Iyingozi uma igwinywe R37/38 – Ukucasula uhlelo lokuphefumula kanye nesikhumba. R41 – Ingozi yokulimala okubi emehlweni |
| Incazelo Yokuphepha | S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha. S39 – Gqoka ukuvikela iso / ubuso. |
| I-Hazard Class | I-IRRITANT |
Isingeniso
-Ukubukeka: Ikristalu emhlophe noma okuqinile okuphuzi okukhanyayo.
-Indawo yokuncibilika: mayelana ne-40-42 ℃.
Iphuzu elibilayo: mayelana ne-163-165 ℃.
-Ukuminyana: mayelana ne-1.435g/cm³.
-I-Solubility: Incibilika kwezinye izincibilikisi ezivamile ze-organic, njenge-ethanol, i-chloroform ne-dichloromethane.
Sebenzisa:
Isetshenziselwa ikakhulukazi ukusabela kwamakhemikhali ku-organic synthesis. Ingasetshenziswa njenge-intermediate of fluorescent dyes, njengento eluhlaza emkhakheni wezokwelapha, nasendaweni yezolimo yokulungisa izibulala-zinambuzane.
Indlela Yokulungiselela:
ingalungiswa nge-chlorination, indlela ye-benzaldehyde ene-fluorinated. Indlela eqondile yokulungiselela imi kanje:
1. Ngaphansi kwezimo ezifanele, i-hydrofluoric acid yengezwa ku-benzaldehyde ukuyivumela ukuba ibhekane ne-fluorination reaction.
2. Ngemva kokusabela, i-hydrogen chloride yengezwa ku-chlorinate umkhiqizo we-fluorinated.
3. ukwenza izinyathelo ezifanele zokuhlanza ukuze uthole iphosphonium emsulwa.
Ulwazi Lokuphepha:
-iyizinto eziyingozi, ezingabangela ukucasuka nokulimala emzimbeni womuntu. Gqoka amagilavu okuzivikela, izibuko kanye nezinto zokuvikela ukuphefumula lapho kudingeka.
-Gwema ukuhogela uthuli noma igesi yayo, futhi gwema ukuthintana nesikhumba namehlo.
-Ngesikhathi sokugcinwa kanye nokusetshenziswa, izinqubo zokuphepha kwamakhemikhali kufanele zibhekwe, futhi izimo zokungena komoya ezifanele kufanele zigcinwe.
-Ngokuchayeka ngephutha noma ukumunca, funa usizo lwezokwelapha ngokushesha futhi unikeze idatha yokuphepha efanele.
