4-Bromo-2-methylpyridine (CAS # 22282-99-1)
| Risk Codes | R22 - Ua phem yog tias nqos R37/38 - Kab mob ua pa thiab tawv nqaij. R41 - Riam phom loj rau qhov muag 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. S36/39 - S36 - Hnav khaub ncaws tiv thaiv zoo. |
| UN IDs | NA 1993 / PIB |
| WGK Germany | 3 |
| HS Code | 293339 0 |
| Hazard Class | IRRITANT |
Taw qhia
2-Methyl-4-bromopyridine yog ib qho organic compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm 2-methyl-4-bromopyridine:
Zoo:
- 2-Methyl-4-bromopyridine yog xim tsis muaj xim rau daj ntseg daj.
- 2-Methyl-4-bromopyridine yuav luag insoluble hauv dej tab sis soluble hauv cov kuab tshuaj organic.
Siv:
- 2-Methyl-4-bromopyridine tuaj yeem siv los ua cov khoom siv raw thiab reagent hauv organic synthesis.
Txoj kev:
- 2-Methyl-4-bromopyridine tuaj yeem tau txais los ntawm kev ua haujlwm 2-methyl-4-pyridine methanol nrog phosphorus tribromide.
- Thaum lub sij hawm cov tshuaj tiv thaiv, 2-methyl-4-pyridine methanol thiab phosphorus tribromide tau ntxiv rau hauv cov hlab ntsha cov tshuaj tiv thaiv, cov tshuaj tiv thaiv sib xyaw tau ua kom sov, thiab tom qab ntawd 2-methyl-4-bromopyridine tau ntxuav los ntawm distillation thiab lwm txoj kev.
Cov ntaub ntawv kev nyab xeeb:
- 2-Methyl-4-bromopyridine tuaj yeem ua rau khaus ntawm qhov muag, tawv nqaij, thiab ua pa thiab yuav tsum zam thaum siv.
- Hnav cov looj tsom iav, hnab looj tes thiab tiv thaiv ua pa thaum siv.
- Nws yog ib qho tshuaj lom thiab yuav tsum tau muab khaws cia kom zoo thiab khaws cia kom deb ntawm qhov hluav taws kub thiab cov oxidizing agents.
- Yog tias 2-methyl-4-bromopyridine nqus tau los yog noj, nrhiav kev kho mob tam sim ntawd.
