2-Chloro-6-methoxy-3-nitropyridine (CAS # 38533-61-8)
| Risk Codes | R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R44 - Kev pheej hmoo ntawm kev tawg yog tias cua sov hauv qhov chaw kaw 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. 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. |
| WGK Germany | 3 |
| HS Code | 293339 0 |
| Kev Ceeb Toom | Irritant |
| Hazard Class | 6.1 |
Taw qhia
Nws yog ib qho organic compound nrog cov tshuaj formula C6H5ClN2O3.
Xwm:
-Zoo: Dawb rau lub teeb daj daj
- Melting Point: 44-46 ° C
- Kub taw tes: 262 ° C
-Soluble nyob rau hauv: cawv thiab ether, insoluble nyob rau hauv dej
Siv:
yog ib qho tseem ceeb nruab nrab, dav siv nyob rau hauv lub teb ntawm organic synthesis. Nws tuaj yeem siv los ua ke ntau yam ntawm cov tshuaj lom neeg lom neeg, xws li tshuaj, dyes thiab tshuaj tua kab.
Txoj Kev Npaj:
Synthesis tuaj yeem ua tiav los ntawm cov kauj ruam hauv qab no:
1. 2-Nitro-6-formylpyridine tau txais los ntawm reacting 2-nitro-6-nitro-pyridine nrog sulfuric acid.
2. Cov tshuaj tiv thaiv ntawm 2-nitro-6-formylpyridine thiab chloromethyl ether nyob rau hauv qhov kev txiav txim ntawm alkali yog generated.
3. Purification thiab crystallization cov kauj ruam tau ua kom tau cov khoom ntshiab.
Cov ntaub ntawv kev nyab xeeb:
Ib yam khoom phom sij uas yuav ua rau khaus thiab ua xua los ntawm kev raug lossis nqus pa. Thaum ua haujlwm, hnav cov kev tiv thaiv tsim nyog xws li hnab looj tes, tsom iav thiab khaub ncaws tiv thaiv, thiab xyuas kom meej tias kev ua haujlwm tau ua nyob rau hauv qhov chaw muaj cua zoo. Thaum khaws cia thiab tuav, kev sib cuag nrog cov oxidants muaj zog thiab cov khoom siv hluav taws xob yuav tsum raug zam.
