3-Bromo-5-methylpyridine (CAS # 3430-16-8)
| Risk Codes | R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R41 - Riam phom loj rau qhov muag R22 - Ua phem 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. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. S39 - Hnav qhov muag / ntsej muag tiv thaiv. |
| UN IDs | NA 1993 / PIB |
| WGK Germany | 3 |
| Hazard Class | IRRITANT |
Taw qhia
3-Bromo-5-methyl-pyridine yog cov organic compound nrog cov tshuaj formula C6H6BrN thiab molecular hnyav ntawm 173.03g / mol. Cov hauv qab no yog cov lus piav qhia ntawm nws qhov xwm txheej, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb:
Xwm:
-Cov tsos mob: tsis muaj xim rau cov kua daj daj daj lossis crystalline khoom.
-Solubility: Soluble nyob rau hauv feem ntau cov organic solvents, xws li cawv, ethers thiab chlorinated hydrocarbons.
- Melting point: txog 14-15 ℃.
-Boiling point: txog 206-208 ℃.
- Qhov ceev: txog 1.49g / cm³.
-Odor: muaj qhov tshwj xeeb thiab stimulating tsw.
Siv:
- 3-Bromo-5-methyl-pyridine feem ntau yog siv los ua ib qho nruab nrab ntawm cov organic synthesis thiab tuaj yeem siv los npaj lwm cov organic tebchaw, xws li tshuaj, tshuaj tua kab thiab tshuaj zawv plaub hau.
-Nws tseem tuaj yeem siv los ua cov tshuaj reagent hauv kev tshawb fawb thiab kev sim.
Txoj Kev Npaj:
- 3-Bromo-5-methyl-pyridine tuaj yeem tsim los ntawm ntau txoj hauv kev, ib qho uas feem ntau siv los ntawm kev ntxiv cov tshuaj methylating (xws li methyl magnesium bromide) rau 3-bromopyridine.
Cov ntaub ntawv kev nyab xeeb:
- 3-Bromo-5-methyl-pyridine yuav tsum tau siv raws li cov txheej txheem kev nyab xeeb tsim nyog, xws li hnav cov khoom tiv thaiv tus kheej uas yuav tsum tau siv hauv cov chaw kuaj tshuaj.
-Nws yuav ua rau khaus thiab puas rau qhov muag, tawv nqaij thiab ua pa. Ntxuav qhov chaw raug mob tam sim ntawd thiab nrhiav kev pab kho mob yog tias tsim nyog.
-Thaum khaws cia thiab tuav, nws yuav tsum muab cia rau hauv lub thawv kaw, kom deb ntawm hluav taws kub thiab kub.
-Thaum pov tseg cov khoom pov tseg, ua raws li cov cai hauv zos thiab ua raws li kev tiv thaiv ib puag ncig tsim nyog.
