2-Methyl-5-nitropyridine (CAS # 21203-68-9)
| Hazard Cov Cim | Xi-xaj |
| Risk Codes | 36/37/38 – Khaus qhov muag, ua pa thiab tawv nqaij. |
| 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 - Hnav khaub ncaws tiv thaiv zoo. |
Taw qhia
2-methyll-5-nitropyridine yog ib qho organic compound nrog cov tshuaj formula C6H6N2O2, uas muaj cov khoom nram qab no:
1. Cov tsos: xim tsis muaj xim rau lub teeb daj siv lead ua;
2. tsw: tsis muaj ntxhiab tsw tshwj xeeb;
3. Melting Point: 101-104 ° C;
4. Solubility: yuav luag insoluble hauv dej, soluble hauv organic solvents xws li ethanol thiab dichloromethane.
2-Methyl-5-nitropyridine feem ntau yog siv los ua cov khoom siv raw thiab nruab nrab hauv cov organic synthesis thiab kev lag luam tshuaj. Nws tuaj yeem siv rau kev sib txuas ntawm pyridine thiab thiophene compounds, thiab tseem tuaj yeem siv rau kev npaj tshuaj tua kab, dyes thiab qee cov tshuaj hauv thaj chaw tshuaj.
Kev npaj ntawm 2-methyll-5-nitropyridine tuaj yeem ua tiav los ntawm cov kauj ruam hauv qab no:
1.2-pyridine acetic acid thiab sodium nitrite yog reacted nyob rau hauv acidic tej yam kev mob los tsim 2-nitropyridine.
2. Cov tshuaj tiv thaiv ntawm 2-Nitro pyridine nrog methylating reagent (xws li methyl iodide) los tsim 2-Methyl-5-nitropyridine.
Thaum siv thiab khaws cia 2-methyll-5-nitropyridine, koj yuav tsum tau xyuam xim rau cov ntaub ntawv kev nyab xeeb hauv qab no:
-Nws yog ib qho combustible, zam kev sib cuag nrog hluav taws;
- Ua tib zoo saib xyuas kev tiv thaiv thaum ua haujlwm, xws li hnav tsom iav thiab hnab looj tes;
- zam kev nqus ntawm nws cov pa los yog hmoov av, zam kev sib cuag ntawm daim tawv nqaij;
- Khaws rau hauv lub thawv kaw, kom deb ntawm hluav taws thiab oxidizing tus neeg sawv cev;
-Tsis txhob sib xyaw nrog cov oxidants muaj zog lossis muaj zog acids.
