2-Hydroxy-4-methyl-5-nitropyridine (CAS # 21901-41-7)
| Risk Codes | R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. 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. S36 - Hnav khaub ncaws tiv thaiv zoo. |
| UN IDs | 2811 ib |
| WGK Germany | 3 |
| HS Code | 29337900 ib |
| Hazard Class | 6.1 |
| Packing Group | III |
Taw qhia
Nws yog ib qho organic compound nrog cov tshuaj formula C7H7N2O3.
Xwm:
yog ib qho khoom nrog daj daj mus rau xim daj. Nws yog ntau soluble nyob rau hauv cov kuab tshuaj thiab tsawg soluble nyob rau hauv dej. Nws muaj qee qhov kev combustion, thiab thaum cua sov lossis ntsib cov nplaim taws yuav tsim cov tshuaj lom nitrogen oxides (NOx).
Siv:
Nws yog feem ntau siv rau hauv cov organic synthesis ua ib qho tseem ceeb nruab nrab. Nws tuaj yeem siv rau hauv kev sib txuas ntawm pyridine tebchaw, xws li tshuaj tua kab, tshuaj thiab dyes. Tsis tas li ntawd, nws kuj tseem siv tau los ua ib lub ligand rau cov hlau complexes.
Txoj kev:
Nws feem ntau yog npaj los ntawm cov tshuaj tiv thaiv ntawm 4-methyl-2-nitropyridine thiab sodium hydroxide. Cov tshuaj tiv thaiv feem ntau yog nqa tawm hauv cov kuab tshuaj organic thiab cov khoom tuaj yeem tau txais.
Cov ntaub ntawv kev nyab xeeb:
Nws yog teeb meem rau tib neeg lub cev. Kev sib cuag nrog daim tawv nqaij yuav ua rau muaj kev tsis haum tshuaj, thiab kev nqus ntawm nws cov plua plav lossis vapors yuav tsum zam. Thaum tuav, yuav tsum muaj kev tiv thaiv tsim nyog, xws li hnav hnab looj tes, tsom iav thiab khaub ncaws tiv thaiv. Thaum siv lossis khaws cia, yuav tsum nyob deb ntawm qhov hluav taws kub thiab oxidant. Nyob rau hauv cov ntaub ntawv ntawm kev huam yuaj, tawm hauv qhov chaw tawm sai sai thiab ua raws li kev tu kom tsim nyog.
