5-Bromo-3-cyanopyridine (CAS # 35590-37-5)
| Risk Codes | R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R20/21/22 - Ua phem los ntawm kev nqus pa, tiv thaiv daim tawv nqaij thiab yog tias nqos. |
| Kev nyab xeeb piav qhia | S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S36 - Hnav khaub ncaws tiv thaiv zoo. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. |
| UN IDs | ib 3276 |
| WGK Germany | 3 |
| HS Code | 293339 0 |
| Kev Ceeb Toom | Irritant |
| Hazard Class | 6.1 |
| Packing Group | III |
Taw qhia
5-bromo-3-cyanopyridine yog ib qho organic compound nrog cov tshuaj formula C6H3BrN2. Nws yog dawb mus rau yellowish crystal, soluble nyob rau hauv ib co organic solvents xws li ethanol thiab dimethyl sulfoxide. Hauv qab no yog cov lus piav qhia ntxaws txog cov khoom, kev siv, kev npaj thiab kev nyab xeeb ntawm 5-bromo-3-cyanopyridine:
Xwm:
-Zoo: Dawb mus rau yellowish crystals
- Melting point: kwv yees li 89-93 ° C
- boiling point: txog 290-305 ° C
- Qhov ntom: kwv yees li 1.64 g / mL
Molecular Luj: 174.01g / mol
Siv:
5-bromo-3-cyanopyridine feem ntau yog siv los ua ib qho nruab nrab ntawm cov organic synthesis, thiab muaj cov ntawv thov tseem ceeb hauv kev siv tshuaj synthesis, tshuaj tua kab synthesis thiab dye synthesis.
Cov ntawv thov tshwj xeeb suav nrog:
-Nyob rau hauv cov tshuaj, nws tuaj yeem siv los tsim cov tshuaj tiv thaiv qog, tshuaj tiv thaiv kab mob thiab tshuaj tua kab mob.
-Nyob rau hauv cov tshuaj tua kab, nws tuaj yeem siv rau cov tshuaj tua kab hluavtaws thiab tshuaj tua kab.
-Nyob rau hauv daim teb ntawm dyes, nws tuaj yeem siv los ua cov organic dyes.
Txoj Kev Npaj:
Txoj kev npaj ntawm 5-bromo-3-cyanopyridine tuaj yeem ua tiav los ntawm cov kauj ruam hauv qab no:
1. 3-cyanopyridine reacts nrog hydrobromic acid nyob rau hauv alkaline tej yam kev mob los tsim 5-bromo-3-cyanopyridine.
Cov ntaub ntawv kev nyab xeeb:
Kev ceev faj txog kev nyab xeeb hauv qab no yuav tsum tau ua thaum siv 5-bromo-3-cyanopyridine:
-Nws yog ib qho organic compound uas ua rau khaus. Tsis txhob nqus plua plav lossis tiv thaiv daim tawv nqaij thiab qhov muag.
-Kev siv thiab khaws cia, yuav tsum ua raws li cov txheej txheem kev nyab xeeb, hnav cov khoom tiv thaiv tus kheej, xws li hnab looj tes thiab tsom iav kev nyab xeeb.
-Tsis txhob sib tov lossis sib cuag nrog cov khoom xws li cov oxidants muaj zog thiab cov kua qaub uas muaj zog tiv thaiv kev phom sij.
- Khaws rau hauv qhov chaw ventilated kom deb ntawm qhov qhib nplaim taws thiab qhov chaw cua sov.
-Yog nqus tau los yog kov ntawm daim tawv nqaij thiab qhov muag, yaug tam sim ntawd nrog dej. Nrhiav kev pab kho mob yog tias tsim nyog.
Raws li cov teeb meem kev nyab xeeb, kev siv thiab tuav ntawm 5-bromo-3-cyanopyridine yuav tsum ua raws li cov txheej txheem hauv chaw kuaj mob kom raug thiab ua raws li cov cai tswj kev nyab xeeb.
