6-Bromonicotinic acid CAS # 6311-35-9
| Risk Codes | R22 - Ua phem yog tias nqos R36/37/38 - Kab mob rau 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. |
| WGK Germany | 3 |
| HS Code | 293339 0 |
| Hazard Class | IRRITANT |
Taw qhia
Acid, tseem hu ua acid, yog cov organic compound. Cov hauv qab no yog cov lus piav qhia ntawm nws qhov xwm txheej, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb:
Xwm:
-Qhov tsos: acid yog dawb crystalline hmoov.
Cov mis mos molecular: C6H4BrNO2.
Molecular Luj: 206.008g / mol.
- Melting point: txog 132-136 ° C.
-Stable nyob rau hauv chav tsev kub thiab soluble nyob rau hauv ib co organic solvents.
Siv:
-acid feem ntau yog siv los ua raw khoom lossis nruab nrab hauv cov organic synthesis.
-Nws tuaj yeem siv los ua ke ntawm cov khoom siv nitrogen-muaj cov tshuaj heterocyclic, xws li pyridine thiab pyridine derivatives.
-Nws tseem tuaj yeem siv los npaj cov tshuaj lom neeg lom neeg, xws li tshuaj tua kab, tshuaj thiab tshuaj pleev xim.
Txoj Kev Npaj:
-¾ acid feem ntau yog npaj los ntawm cov tshuaj tiv thaiv ntawm bromo-nicotinic acid. Ib txoj kev sib xyaw ua ke yog ua kom cov nicotinic acid nrog bromoethanol nyob rau hauv alkaline tej yam kev mob, ua raws li acidification kom tau cov khoom.
Cov ntaub ntawv kev nyab xeeb:
-cov kua qaub yuav tsum ua raws li cov txheej txheem kuaj kev nyab xeeb thaum siv.
-Nws tuaj yeem ua rau qhov muag, tawv nqaij thiab ua pa, yog li yuav tsum tsis txhob sib cuag ncaj qha thaum ua haujlwm.
-nyob rau hauv cia thiab siv yuav tsum tau xyuam xim kom tsis txhob sib cuag nrog oxidants, muaj zog acids thiab lwm yam tshuaj, thiaj li tsis txhob muaj teeb meem tshuaj los yog tshuaj.
-Yog tias tsim nyog, ua haujlwm hauv qhov chaw muaj cua zoo, hnav hnab looj tes tiv thaiv, tsom iav tiv thaiv thiab lub ntsej muag tiv thaiv. Yog tias nqus tau los yog raug, nrhiav kev kho mob.
