2 4 5-Trifluorobenzoic acid (CAS # 446-17-3)
| 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. S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. |
| WGK Germany | 3 |
| HS Code | 291639 0 |
| Hazard Class | IRRITANT |
Taw qhia
2,4,5-Trifluorobenzoic acid yog cov organic compound. Cov hauv qab no yog kev qhia txog nws qhov xwm txheej, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb:
Zoo:
- Zoo li: Xim tsis muaj xim rau dawb crystalline hmoov
- Solubility: me ntsis soluble hauv dej thiab soluble hauv organic solvents xws li cawv, ethers thiab ketones
- Cov khoom siv tshuaj: Nws yog cov kua qaub uas muaj zog uas ua rau cov alkalis, cov hlau thiab cov hlau tsis zoo.
Siv:
- 2,4,5-Trifluorobenzoic acid yog siv los ua ib qho tseem ceeb nruab nrab thiab catalyst hauv organic synthesis.
- Hauv qee qhov kev cuam tshuam tshwj xeeb, nws tuaj yeem siv los ua cov tshuaj fluoride ions thiab koom nrog cov tshuaj fluorination.
- Nws kuj tuaj yeem siv rau hauv kev npaj ntawm lwm cov tshuaj organofluorine.
Txoj kev:
Muaj ntau txoj hauv kev los npaj 2,4,5-trifluorobenzoic acid, thiab cov hauv qab no yog ib txoj hauv kev siv ntau:
- React benzoic acid nrog txhuas trifluoride kom tau benzoylaluminum trifluoride.
- Tom qab ntawd, benzoyl aluminium trifluoride reacted nrog dej los yog cawv kom hydrolyze muab 2,4,5-trifluorobenzoic acid.
Cov ntaub ntawv kev nyab xeeb:
- 2,4,5-Trifluorobenzoic acid ua rau khaus ntawm daim tawv nqaij thiab qhov muag, thiab cov khoom siv tiv thaiv tsim nyog yuav tsum tau thaum tuav thiab tiv tauj.
- Nyob rau hauv ib qho chaw ntub dej, nws yuav degrade thiab tsim cov pa phem, uas yuav tsum tau ua nyob rau hauv ib qho chaw zoo-ventilated.
- Thaum khaws cia thiab thauj, kev sib cuag nrog cov oxidants muaj zog, muaj zog acids thiab lwm yam tshuaj yuav tsum tau tiv thaiv.
- Nrhiav kev kho mob tam sim yog tias noj lossis nqus tau.
Cov txheej txheem ua haujlwm kom raug thiab ntsuas kev nyab xeeb yuav tsum tau ua raws thaum siv thiab tuav cov tshuaj, thiab tshuaj xyuas thiab tswj xyuas raws li qhov xwm txheej.
