Tom ntej: Methyl Propionate CAS 554-12-1
| Risk Codes | R11 - Cov nplaim hluav taws kub heev R20 - Ua phem los ntawm kev nqus pa R2017/11/20 - |
| Kev nyab xeeb piav qhia | S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. S24 - Tsis txhob sib cuag nrog daim tawv nqaij. S29 - Tsis txhob muab tso rau hauv qhov dej. S33 - Siv cov kev tiv thaiv kev tiv thaiv zoo li qub. |
| UN IDs | UN 1248 3/PG 2 |
| WGK Germany | 1 |
| RTECS | UA 5970000 |
| TSCA | Yog lawm |
| HS Code | 29 15 000 ib |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 qhov ncauj hauv luav: 5000 mg / kg |
Taw qhia
Methyl propionate, tseem hu ua methoxyacetate. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm methyl propionate:
Zoo:
- Cov tsos mob: Methyl propionate yog cov kua tsis muaj xim pob tshab nrog cov tshuaj tsw qab tshwj xeeb.
- Solubility: Methyl propionate yog ntau soluble nyob rau hauv anhydrous alcohols thiab ether solvents, tab sis tsawg soluble nyob rau hauv dej.
Siv:
- Kev siv hauv kev lag luam: Methyl propionate yog ib qho tseem ceeb ntawm cov organic hnyav uas tau siv dav hauv txheej txheej, inks, adhesives, detergents thiab lwm yam lag luam.
Txoj kev:
Kev npaj ntawm methyl propionate feem ntau esterified:
CH3OH + CH3COOH → CH3COOCH2CH3 + H2O
Ntawm lawv, methanol thiab acetic acid react nyob rau hauv qhov kev txiav txim ntawm ib tug catalyst los tsim methyl propionate.
Cov ntaub ntawv kev nyab xeeb:
- Methyl propionate yog cov kua hluav taws xob thiab yuav tsum tau ceev kom deb ntawm cov nplaim taws qhib thiab kub siab.
- Kev raug methyl propionate tuaj yeem ua rau qhov muag thiab tawv nqaij khaus, yog li yuav tsum tau ceev faj.
- Tsis txhob nqus cov pa ntawm methyl propionate thiab yuav tsum ua haujlwm hauv qhov chaw uas muaj cua zoo.
-Thaum noj tshuaj los yog nqus pa, mus nrhiav kev kho mob tam sim ntawd.
