3 5-difluoropyridine (CAS# 71902-33-5)
| Amakhodi Engozi | R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba. R50 – Kunobuthi Kakhulu ezintweni eziphila emanzini R20/21/22 – Kuyingozi ngokuhogela umoya, ukuthintana nesikhumba futhi uma ukugwinyile. I-R11 – Ivutha Kakhulu |
| Incazelo Yokuphepha | S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha. S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu kanye nokuvikela iso/ubuso. I-S61 - Gwema ukudedelwa endaweni. Bheka imiyalelo ekhethekile / amaphepha edatha okuphepha. I-S36/37 – Gqoka izingubo zokuzivikela ezifanele namagilavu. |
| Ama-ID e-UN | 1993 |
| I-WGK Germany | 3 |
| Ikhodi ye-HS | 29333990 |
| Inothi Lengozi | Ivutha kakhulu/Eyacasulayo |
| I-Hazard Class | 3 |
| Iqembu Lokupakisha | II |
Isingeniso
I-3,5-Difluoropyridine iyinhlanganisela ye-organic ene-chemical formula C5H3F2N. Okulandelayo yincazelo yemvelo yayo, ukusetshenziswa, ukwakhiwa kanye nolwazi lokuphepha:
Imvelo:
-Ukubukeka: uketshezi olungenambala
-Indawo yokuncibilika: -53 ℃
-Indawo yokubilisa: 114-116 ℃
-Ukuminyana: 1.32g/cm³
-I-Solubility: Incibilika emanzini nasezincibilikisini eziningi eziphilayo.
Sebenzisa:
- I-3,5-Difluoropyridine isetshenziswa kakhulu njengento ebalulekile yokusetshenziswa kwe-organic synthesis. Ingasetshenziswa ekuhlanganiseni izibulala-zinambuzane, imithi kanye nezinye izinhlanganisela eziphilayo.
-Ingasetshenziswa futhi njenge-reagent yamakhemikhali yokuhlaziya nokucwaninga kwamakhemikhali.
Indlela Yokulungiselela:
Ukulungiswa kwe-3,5-Difluoropyridine kuvame ukwenziwa ngenye yezindlela ezilandelayo:
-Kusukela ku-pyrimidine, qala ngokungenisa ama-athomu e-fluorine ku-pyrimidine, bese wengeza ama-athomu e-fluorine ezindaweni ezi-3 nezi-5.
-kutholwe ku-3,5-difluoro chloropyrimidine noma 3,5-difluoro bromopyrimidine reaction.
Ulwazi Lokuphepha:
- 3,5-Difluoropyridine ingase ibe yingozi emzimbeni womuntu. Ukuchayeka kwinhlanganisela kungase kubangele ukusabela kokucasuka kwamehlo nesikhumba. Ngakho-ke, kuyadingeka ukuthatha izinyathelo zokuzivikela ezidingekayo, njengokugqoka amagilavu afanelekile, izibuko nezingubo zokuzivikela.
-Uma uthinta noma uphefumula i-3,5-Difluoropyridine, indawo ethintekile kufanele ihlanzwe ngokushesha futhi yelulekwe udokotela.
-Ngesikhathi sokugcina nokuphatha, ukunakekelwa kufanele kuthathwe ukugwema ukuthintana nama-oxidants aqinile nama-acids aqinile.
Sicela uqaphele ukuthi lapho usebenzisa futhi uphatha i-3,5-Difluoropyridine, landela njalo izinqubo zokuphepha ezifanele zaselabhorethri futhi ubhekisele kumaphepha edatha okuphepha afanele kanye nemiyalelo.
