2-Chloro-4-methyl-3-nitropyridine (CAS # 23056-39-5)
| Risk Codes | R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R21/22 - Ua phem rau ntawm 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. S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. S36 - Hnav khaub ncaws tiv thaiv zoo. |
| UN IDs | UN 2811 |
| WGK Germany | 3 |
| HS Code | 2933399 ib |
| Hazard Class | 6.1 |
| Packing Group | III |
Taw qhia
2-Chloro-4-methyl-3-nitropyridine yog cov organic compound. Cov hauv qab no yog kev qhia txog nws qhov xwm txheej, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb:
Khoom: 2-Chloro-4-methyl-3-nitropyridine yog xim tsis muaj xim rau lub teeb daj nrog cov ntxhiab tsw. Nws yog insoluble hauv dej thiab soluble hauv cov kuab tshuaj organic xws li ethanol thiab dimethylformamide. Nws yog tshuaj lom heev.
Kev Siv: 2-chloro-4-methyl-3-nitropyridine yog siv los ua ib qho tseem ceeb nruab nrab thiab cov khoom siv hluavtaws hauv cov organic synthesis. Nws kuj tseem siv tau rau hauv kev npaj cov hlau complexes thiab catalysts.
Txoj kev npaj: Kev npaj ntawm 2-chloro-4-methyl-3-nitropyridine feem ntau pib nrog 2-chloro-4-methylpyridine. Ua ntej, 2-chloro-4-methylpyridine reacted nrog concentrated nitric acid, thiab tom qab ntawd cov khoom tau crystallized thiab purified kom tau 2-chloro-4-methyl-3-nitropyridine.
Cov Lus Qhia Txog Kev Nyab Xeeb: 2-Chloro-4-methyl-3-nitropyridine yog cov tshuaj lom neeg uas yuav ua rau muaj kev phom sij rau kev noj qab haus huv yog tias raug los yog nqus tau rau hauv nws cov vapors, hmoov, lossis cov tshuaj daws. Nws yog khaus thiab rhiab heev thiab yuav tsum tsis txhob sib cuag nrog daim tawv nqaij, qhov muag, thiab ua pa ib ntsuj av. Kev ntsuas kev nyab xeeb tsim nyog yuav tsum tau ua thaum tuav lossis khaws cia, xws li hnav cov cuab yeej tiv thaiv tsim nyog (xws li hnab looj tes, tsom iav, thiab qhov ncauj qhov ntswg). Thaum siv, xyuas kom muaj qhov cua zoo thiab tsis txhob sib cuag nrog cov khoom siv hluav taws xob. Txhua yam pov tseg uas cuam tshuam nrog 2-chloro-4-methyl-3-nitropyridine yuav tsum muab pov tseg raws li cov cai hauv zos. Thaum siv lossis tuav cov khoom sib xyaw no, cov txheej txheem kev nyab xeeb thiab cov txheej txheem yuav tsum tau ua raws li nruj me ntsis.
