Ethyl crotonate (CAS # 623-70-1)
| Risk Codes | R11 - Cov nplaim hluav taws kub heev R34 - Ua rau kub hnyiab R36 - Khau qhov muag |
| Kev nyab xeeb piav qhia | S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. S45 - Thaum muaj xwm txheej lossis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (qhia daim ntawv lo thaum twg ua tau.) S9 - Khaws lub thawv rau hauv qhov chaw muaj cua zoo. S33 - Siv cov kev tiv thaiv kev tiv thaiv zoo li qub. |
| UN IDs | UN 1862 3/PG 2 |
| WGK Germany | 2 |
| RTECS | GQ3500000 |
| TSCA | Yog lawm |
| HS Code | 29161980 ib |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 qhov ncauj hauv luav: 3000 mg / kg |
Taw qhia
Ethyl trans-butenoate yog ib qho organic compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm cov khoom sib xyaw:
Zoo:
Ethyl trans-butenoate yog cov kua tsis muaj xim nrog cov ntxhiab tsw. Nws yog me ntsis denser dua dej nrog qhov ceev ntawm 0.9 g / mL. Soluble nyob rau hauv ntau yam organic solvents, xws li ethanol, ethers thiab naphthenes, nyob rau hauv chav tsev kub.
Siv:
Ethyl trans-butenate muaj ntau yam kev siv hauv kev lag luam tshuaj. Kev siv ntau tshaj plaws yog qhov nruab nrab ntawm cov organic synthesis rau kev npaj ntawm lwm cov organic tebchaw, xws li oxalates, ester solvents thiab polymers. Nws kuj tseem siv tau los ua coatings, roj hmab adjuvants, thiab cov kuab tshuaj.
Txoj kev:
Txoj kev npaj ntawm trans-butenoate ethyl ester feem ntau tau txais los ntawm cov tshuaj tiv thaiv ntawm trans-butenoic acid nrog ethanol. Cov khoom no tau txais los ntawm cua sov trans-butenic acid thiab ethanol nyob rau hauv acidic tej yam kev mob los tsim ib tug ester.
Cov ntaub ntawv kev nyab xeeb:
Ethyl trans-butenoate ua rau khaus ntawm qhov muag thiab tawv nqaij thiab tuaj yeem ua rau mob ntawm qhov muag thiab tawv nqaij. Kev nqus pa ntawm nws cov vapors yuav tsum zam thaum tuav cov khoom sib xyaw, thiab kev ua haujlwm yuav tsum tau ua nyob rau hauv qhov chaw muaj cua zoo. Thaum khaws cia, nws yuav tsum tau muab tso rau hauv ib lub thawv airtight, kom deb ntawm ignition thiab oxidizers.
