2 5-Dichloro-3-nitropyridine (CAS # 21427-62-3)
| Risk Codes | R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R22 - Ua phem yog tias nqos R43 - Tej zaum yuav ua rau mob ntawm daim tawv nqaij R41 - Riam phom loj rau qhov muag R37/38 - Kab mob ua pa thiab tawv nqaij. R25 - Toxic yog nqos |
| Kev nyab xeeb piav qhia | S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S45 - Thaum muaj xwm txheej lossis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (qhia daim ntawv lo thaum twg ua tau.) |
| UN IDs | 2811 ib |
| WGK Germany | 1 |
| HS Code | 293339 0 |
| Kev Ceeb Toom | Ua phem |
| Hazard Class | 6.1 |
| Packing Group | Ⅲ |
Taw qhia
2,5-Dichloro-3-nitropyridine yog cov organic compound. Cov hauv qab no yog kev qhia txog nws cov khoom, kev siv, kev tsim khoom thiab cov ntaub ntawv kev nyab xeeb:
Zoo:
Cov tsos mob: 2,5-Dichloro-3-nitropyridine yog xim tsis muaj xim rau daj ntseg daj.
- Solubility: Nws yog soluble hauv cov kuab tshuaj organic xws li ethanol, dimethyl ether thiab chloroform, tab sis tsawg soluble hauv dej.
- Stability: Lub compound yog ruaj khov nyob rau hauv chav tsev kub, tab sis yog tawg nyob rau hauv high kub los yog nyob rau hauv kev sib cuag nrog muaj zog oxidizing neeg sawv cev.
Siv:
- Tshuaj tua kab: Nws tuaj yeem siv los ua tshuaj tua kab thiab muaj txiaj ntsig zoo rau qee cov kab tsuag.
Txoj kev:
Cov txheej txheem synthesis ntawm 2,5-dichloro-3-nitropyridine feem ntau suav nrog cov tshuaj tiv thaiv nitrification thiab cov tshuaj chlorination. Ntawm lawv, cov txheej txheem kev sib xyaw ua ke yog nitrate 2,5-dichloropyridine nrog nitric acid nyob rau hauv muaj sulfuric acid. Lwm txoj kev yog los ua 2-nitro-5-chloropyridine nrog acidic tooj liab bromide los tsim 2,5-dichloro-3-nitropyridine.
Cov ntaub ntawv kev nyab xeeb:
- 2,5-Dichloro-3-nitropyridine yog cov organic compound uas yuav tsum tau ua tib zoo saib xyuas kom tsis txhob nkag mus rau ntawm daim tawv nqaij, qhov muag, thiab ua pa.
- Hnav cov khoom tiv thaiv tsim nyog, suav nrog cov looj tsom iav, hnab looj tes, thiab daim npog ntsej muag, thaum ua haujlwm.
- Thaum lub sijhawm ua haujlwm, tsis txhob nqus cov pa, huab cua lossis vapors thiab ua kom muaj cua zoo.
- Thaum ntsib daim tawv nqaij lossis ob lub qhov muag, yaug tam sim ntawd nrog dej kom ntau thiab ntsib kws kho mob.
- Thaum khaws cia, 2,5-dichloro-3-nitropyridine yuav tsum khaws cia rau hauv qhov chaw qhuav, txias, qhov cua zoo, kom deb ntawm qhov hluav taws kub thiab oxidants.
