2-Bromopyridine-4-carboxylic acid (CAS # 66572-56-3)
| 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. S36/37 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog. |
| WGK Germany | 3 |
| HS Code | 293339 0 |
| Kev Ceeb Toom | Khawv koob / Cia txias |
| Hazard Class | IRRITANT |
Taw qhia
2-Bromoisoniacin, tseem hu ua 2-bromopyridine-4-carboxylic acid, yog cov organic compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm 2-bromoisoniacinic acid:
Zoo:
- Cov tsos mob: 2-Bromoisoniacinic acid yog dawb los yog dawb crystalline khoom.
- Solubility: Nws tuaj yeem yaj hauv cov kuab tshuaj organic xws li dej, ethanol, thiab ether.
- Cov khoom siv tshuaj: Nws tuaj yeem dhau alkaline hydrolysis cov tshuaj tiv thaiv nyob rau hauv alkaline tej yam kev mob los tsim cov bromopyridine sib txuas.
Siv:
- Nws kuj tseem siv tau los ua cov xim nruab nrab hauv kev sib xyaw ntawm cov xim thiab cov xim.
Txoj kev:
- Ib txoj kev npaj rau 2-bromoisoniacinic acid yog tau los ntawm reacting 2-picolinic acid nrog thionyl bromide. Sib tov 2-picolinic acid thiab sulfoxide nyob rau hauv ib qho hnyav hnyav thiab ntxiv ib qho acidic catalyst. Tom qab ntawd, thionyl bromide maj mam ntxiv, thiab cov tshuaj tiv thaiv yuav tshwm sim. Cov tshuaj tiv thaiv tau raug kho kom zoo thiab ua kom huv kom tau txais 2-bromoisoniacinic acid cov khoom uas muaj purity siab.
Cov Lus Qhia Txog Kev Nyab Xeeb: Nws yog ib yam khoom uas ua rau khaus khaus thiab tsis xis nyob thaum sib cuag nrog daim tawv nqaij, qhov muag, lossis ua pa. Cov cuab yeej tiv thaiv tus kheej tsim nyog xws li hnab looj tes, tsom iav, thiab daim npog ntsej muag yuav tsum hnav thaum siv.
- Thaum tuav 2-bromoisoniacin, tsis txhob nqus nws cov plua plav lossis vapors. Tom qab kev kho mob, cov kab mob thiab cov khoom siv yuav tsum tau muab ntxuav kom huv si.
- Kev khaws cia ntawm 2-bromoisoniacin kom zoo, nws yuav tsum khaws cia rau hauv qhov chaw qhuav, txias thiab qhov cua zoo, kom deb ntawm hluav taws kub thiab oxidants. Khaws cais los ntawm cov khoom siv hluav taws xob, cov kua qaub thiab cov tshuaj txo qis.
- Yog tias qhov ua pa tsis haum, raug, lossis noj 2-bromoisoniacin, nrhiav kev kho mob tam sim ntawd thiab nqa cov lus qhia lossis daim ntawv lo ntawm cov khoom nug.
