5-Fluoro-2-nitrobenzoic acid (CAS# 320-98-9)
| Iikhowudi zoMngcipheko | R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu. I-R22 – Iyingozi xa iginyiwe I-R20/21/22 – Iyingozi ngokuphefumla, xa udibana nolusu naxa uginyiwe. |
| Inkcazelo yoKhuseleko | S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. S36 – Nxiba iimpahla ezifanelekileyo ezikhuselayo. S36/37/39 – Nxiba iimpahla ezikhuselayo ezifanelekileyo, iiglavu kunye nokhuseleko lwamehlo/ubuso. S22 – Musa ukuphefumla uthuli. |
| WGK eJamani | 3 |
| Ikhowudi ye-HS | 29163990 |
| IKlasi yeeNgozi | OKUTHUMEKAYO |
Intshayelelo
I-5-fluoro-2-nitrobenzoic acid (5-fluoro-2-nitrobenzoic acid) i-organic compound kunye ne-chemical formula C7H4FNO4. Oku kulandelayo yinkcazo yobume bayo, ukusetyenziswa, ukulungiswa kunye nolwazi lokhuseleko:
Indalo:
-Ukubonakala: I-5-fluoro-2-nitrobenzoic acid imhlophe okanye i-white crystalline powder.
-Indawo yokunyibilika: Malunga ne-172°C.
-Ukunyibilika: Inyibilika kancinci emanzini, inyibilika kwezinye izinyibilikisi zendalo ezifana neealkoholi kunye nee-esters.
Sebenzisa:
-I-Chemical synthesis: I-5-fluoro-2-nitrobenzoic acid isetyenziswa ngokuqhelekileyo i-organic synthesis intermediate, engasetyenziselwa ukudibanisa ezinye izinto eziphilayo, ezifana neziyobisi, izibulala-zinambuzane kunye nedayi.
-Iinjongo zophando lwezenzululwazi: Ngenxa yesakhiwo sayo esiqukethe i-fluorine kunye namaqela e-nitro, i-5-fluoro-2-nitrobenzoic acid ineempawu ezikhethekileyo zeekhemikhali kwaye ingasetyenziselwa uphando kunye novavanyo lwebhubhoratri.
Indlela:
Indlela yokulungiselela i-5-fluoro-2-nitrobenzoic acid idla ngokufunyanwa yi-fluorination reaction ye-2-nitrobenzoic acid.
1. Okokuqala, i-2-nitrobenzoic acid iphendulwa nge-agent fluorinating (njenge-hydrogen fluoride okanye i-sodium fluoride).
2. Emva kokusabela, imveliso ye-5-fluoro-2-nitrobenzoic acid yafunyanwa.
Kufuneka kuqatshelwe ukuba ngexesha lenkqubo yokulungiselela, iimeko ezifanelekileyo zokusebenza zovavanyo kunye namanyathelo okhuseleko kufuneka asetyenziswe ukuqinisekisa ukhuseleko lovavanyo.
Ulwazi ngoKhuseleko:
- I-5-fluoro-2-nitrobenzoic acid ithathwa njengento ekhuselekileyo phantsi kweemeko eziqhelekileyo, kodwa isafuna ukuphathwa ngononophelo kwaye ilandele izenzo ezifanelekileyo zokulinga.
-Ukuqhagamshelana nale ngqungquthela, ukudibanisa ngqo kwesikhumba kunye nokuphefumla uthuli lwayo kufuneka kugwenywe.
-Kwinkqubo yokusetyenziswa kunye nokugcinwa, nceda ukhusele ngokufanelekileyo izixhobo zebhubhoratri, kwaye uthobele izikhokelo ezifanelekileyo zokhuseleko.
-Xa kukho ingozi okanye ukrokrela ukutyhefwa, funa unyango ngokukhawuleza kwaye uze nephepha leenkcukacha zokhuseleko lwekhompawundi.
