4-Methylphenylacetic acid CAS # 622-47-9
| 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 |
| RTECS | ib 7569000 |
| HS Code | 29163900 ib |
| Hazard Class | IRRITANT |
Taw qhia
Methylphenylacetic acid. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm p-totophenylacetic acid:
Zoo:
- Cov tsos mob: Cov tsos mob ntawm methylphenylacetic acid yog dawb crystalline khoom.
- Solubility: Nws yog soluble tsawg dua hauv dej tab sis tuaj yeem soluble hauv feem ntau cov kuab tshuaj organic.
Siv:
Txoj kev:
- Ib txoj kev npaj ntau yog tau los ntawm transesterification ntawm toluene thiab sodium carbonate. P-toluene reacts nrog cawv, xws li ethanol los yog methanol, tsim p-toluene, uas yog ces reacted nrog sodium carbonate muab methylphenylacetic acid.
Cov ntaub ntawv kev nyab xeeb:
- Methylphenylacetic acid yog ruaj khov nyob rau hauv chav tsev kub thiab tej zaum yuav decompose nyob rau hauv qhov kub thiab txias, qhov chaw hluav taws kub los yog lub teeb, ua rau cov tshuaj lom.
- Kev ceev faj tsim nyog yuav tsum tau ua thaum tuav cov tshuaj methamphenylacetic acid, xws li hnav looj tsom iav, hnab looj tes thiab khaub ncaws tiv thaiv. Tsis txhob nqus pa, noj, lossis sib cuag ntawm daim tawv nqaij kom tsis txhob muaj qhov tsis xis nyob lossis raug mob.
- Methylphenylacetic acid yuav tsum khaws cia kom deb ntawm qhov hluav taws kub, muaj zog oxidizing cov neeg ua haujlwm, thiab cov hlau reactive nyob rau hauv qhov chaw qhuav, zoo-ventilated.
