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1-Ethyl-2-acetyl pyrrole (CAS # 39741-41-8)

Chemical Property:

Molecular Formula C8H11 Nr
Molar Mass 137.18 Nws
Qhov ntom 1.01 Nws
Boling Point 82 ° C / 12mmHg
Flash Point 86.4°C dej
JECFA Number 1305 ib
Vapor Siab 0.121mmHg ntawm 25 ° C
Qhov tshwm sim kua ntshiab
Xim Tsis muaj xim rau daj rau txiv kab ntxwv
pKa -7.46 ± 0.70 (Kev kwv yees)
Kev cia khoom nyob rau hauv inert gas (nitrogen los yog Argon) ntawm 2-8 ° C
Refractive Index 1.5280-1.5340 Nws
Siv Siv rau hauv kas fes, txiv hmab txiv ntoo thiab lwm yam khoom noj qab zib

Product Detail

Khoom cim npe

Hazard Cov Cim Xi-xaj
Risk Codes R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij.
R36 - Khau qhov muag
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

 

Taw qhia

N-ethyl-2-pyrrolidone yog cov kua tsis muaj xim uas muaj ntxhiab tsw me ntsis. Cov hauv qab no yog cov lus qhia ntxaws txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm N-ethyl-2-acetylpyrrole:

 

Zoo:

- Cov tsos mob: N-ethyl-2-acetylpyrrole yog cov kua dej tsis muaj xim.

- Solubility: N-ethyl-2-acetylpyrrole muaj zoo solubility hauv dej thiab ntau yam organic solvents.

 

Siv:

- Cov kuab tshuaj: N-ethyl-2-acetylpyrrole yog ib qho zoo heev polar hnyav uas tau siv dav hauv kev lag luam tshuaj, tshuaj, kev ua liaj ua teb, thiab hluav taws xob. Nws tuaj yeem siv los yaj ntau cov organic tebchaw, resins thiab coatings, thiab siv rau hauv kev tsim cov txheej txheem, xim thiab tshuaj ntxuav, thiab lwm yam.

 

Txoj kev:

N-ethyl-2-acetylpyrrole feem ntau yog tau los ntawm reacting 2-pyrrolidone nrog ethanol. Qhov no tuaj yeem ua tau los ntawm reacting 2-pyrrolone nrog ethanol siv alkali catalyst ntawm 250-280 ° C rau ob peb teev.

 

Cov ntaub ntawv kev nyab xeeb:

- Cov vapor ntawm N-ethyl-2-acetylpyrrole muaj qhov ua rau ua rau lub cev ua pa thiab qhov muag, thiab kev sib cuag nrog lub qhov muag yuav ua rau muaj kev puas tsuaj. Yuav tsum tau saib xyuas kom tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag thaum siv los yog tuav.

- Hnav cov khoom tiv thaiv tus kheej tsim nyog xws li hnab looj tes, tsom iav kev nyab xeeb, thiab daim npog ntsej muag thaum siv lossis tuav.

- N-ethyl-2-acetylpyrrole yuav tsum muab cia rau hauv qhov chaw txias, qhov cua zoo, kom deb ntawm qhov kub thiab qhov hluav taws kub.

- Thaum tuav cov khoom sib xyaw, ua raws li cov txheej txheem kev nyab xeeb thiab pov tseg cov khoom pov tseg kom zoo.

 


  • Yav dhau los:
  • Tom ntej:

  • Sau koj cov lus ntawm no thiab xa tuaj rau peb