5-Fluoro-2-nitrobenzoic acid (CAS# 320-98-9)
| Amakhodi Engozi | R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba. I-R22 – Iyingozi uma igwinywe R20/21/22 – Kuyingozi ngokuhogela umoya, ukuthintana nesikhumba futhi uma ukugwinyile. |
| Incazelo Yokuphepha | S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha. S36 – Gqoka izingubo ezifanele zokuzivikela. S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu kanye nokuvikela iso/ubuso. S22 - Ungaphefumuli uthuli. |
| I-WGK Germany | 3 |
| Ikhodi ye-HS | 29163990 |
| I-Hazard Class | I-IRRITANT |
Isingeniso
I-5-fluoro-2-nitrobenzoic acid(5-fluoro-2-nitrobenzoic acid) iyinhlanganisela yemvelo enefomula yamakhemikhali ethi C7H4FNO4. Okulandelayo yincazelo yemvelo yayo, ukusetshenziswa, ukulungiswa kanye nolwazi lokuphepha:
Imvelo:
-Ukubukeka: I-5-fluoro-2-nitrobenzoic acid imhlophe noma i-off-white crystalline powder.
-Indawo yokuncibilika: Cishe ku-172°C.
-Ukunyibilika: Kuncibilika kancane emanzini, kuncibilika kwezinye izincibilikisi zemvelo ezifana notshwala nama-ester.
Sebenzisa:
-I-Chemical synthesis: I-5-fluoro-2-nitrobenzoic acid iyi-organic synthesis intermediate evame ukusetshenziswa, engasetshenziswa ukuhlanganisa ezinye izinhlanganisela eziphilayo, njengezidakamizwa, izibulala-zinambuzane kanye nodayi.
-Izinjongo zocwaningo lwesayensi: Ngenxa yesakhiwo sayo esiqukethe i-fluorine namaqembu e-nitro, i-5-fluoro-2-nitrobenzoic acid inamakhemikhali akhethekile futhi ingasetshenziselwa ucwaningo nokuhlolwa kwelabhorethri.
Indlela:
Indlela yokulungiselela i-5-fluoro-2-nitrobenzoic acid ivamise ukutholakala ngokusabela kwe-fluorination ye-2-nitrobenzoic acid.
1. Okokuqala, i-2-nitrobenzoic acid isabela nge-agent fluorinating (njenge-hydrogen fluoride noma i-sodium fluoride).
2. Ngemuva kokusabela, umkhiqizo we-5-fluoro-2-nitrobenzoic acid watholakala.
Kumele kuqashelwe ukuthi phakathi nenqubo yokulungiselela, izimo zokusebenza zokuhlola ezifanele kanye nezinyathelo zokuphepha kufanele zisetshenziswe ukuze kuqinisekiswe ukuphepha kokuhlolwa.
Ulwazi Lokuphepha:
- I-5-fluoro-2-nitrobenzoic acid ibhekwa njengenhlanganisela ephephile uma kuqhathaniswa ngaphansi kwezimo ezivamile, kodwa isadinga ukuphathwa ngokucophelela futhi ilandele izinqubo zokuhlola ezifanele.
-Ekuthintaneni nalesi sakhi, ukuthintana ngqo kwesikhumba kanye nokuhogela uthuli lwaso kufanele kugwenywe.
-Enqubweni yokusebenzisa nokugcina, sicela uvikele ngendlela efanele impahla yaselabhorethri, futhi uhambisane neziqondiso ezifanele zokuphepha.
-Uma kwenzeka kuba nengozi noma okusolakala ukuthi kunoshevu, funa usizo lwezempilo ngokushesha futhi ulethe ishidi lemininingwane yokuphepha kwaleyo ndawo.
