2 4-Difluorophenylacetic acid (CAS # 81228-09-3)
| 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. S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag |
| WGK Germany | 3 |
| HS Code | 291639 0 |
| Hazard Class | IRRITANT |
Taw qhia
2,4-Difluorophenylacetic 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 2,4-difluorophenylacetic acid:
Zoo:
- 2,4-Difluorophenylacetic acid yog xim tsis muaj xim mus rau daj crystalline khoom nrog ib qho tsw ntxhiab tsw.
- Nws yog non-volatile nyob rau hauv chav tsev kub thiab soluble nyob rau hauv organic solvents xws li ethanol, acetone, ether, thiab lwm yam.
- Nws yog ib qho tsis muaj zog acid uas tuaj yeem soluble hauv alkalis.
Siv:
- Nws kuj tseem siv tau los ua ib qho nruab nrab hauv dyes thiab coatings rau synthesis ntawm dyes thiab coatings ntawm cov xim tshwj xeeb lossis cov khoom.
Txoj kev:
- 2,4-Difluorophenylacetic acid tuaj yeem tau txais los ntawm cov tshuaj tiv thaiv ntawm phenylacetic acid nrog hydrogen fluoride lossis fluorine roj. Cov kev mob tshwm sim feem ntau xav tau lub catalyst thiab tswj qhov kub kom zoo.
Cov ntaub ntawv kev nyab xeeb:
- 2,4-Difluorophenylacetic acid yog cov tshuaj uas yuav tsum tau siv kom zoo.
- Thaum tuav, tsis txhob kov ncaj qha rau ntawm daim tawv nqaij thiab qhov muag, thiab saib xyuas kom tiv thaiv kab mob ua pa.
- Thaum khaws cia, nws yuav tsum khaws cia rau hauv lub thawv airtight, kom deb ntawm qhov hluav taws kub thiab oxidants, thiab tsis txhob sib cuag nrog huab cua thiab noo noo.
- Cov khib nyiab yuav tsum tau muab pov tseg raws li kev cai lij choj ib puag ncig hauv cheeb tsam, thiab yuav tsum tsis txhob muab pov tseg tsis muaj kev ntxub ntxaug.
