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2-Methyl-3,4-Pentadienoic Acid Ethyl Ester(CAS#60523-21-9)

Chemical Property:

Molecular Formula C8H12O2
Misa ya Molar 140.18
Kuchulukana 0.886±0.06 g/cm3(Zonenedweratu)
Boling Point 172.6±10.0 °C(Zonenedweratu)
Nambala ya JECFA 353
Zakuthupi ndi Zamankhwala Malo otentha 160 ℃ kapena 88 ~ 90 ℃ (7333Pa). Ndi zipatso, ndi zipatso, mapeyala ndi maapulo.

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

 

Mawu Oyamba

Ethyl 2-methyl-3,4-pentadienoic acid ndi organic pawiri, nthawi zambiri amafupikitsidwa ngati MEHQ. Zotsatirazi ndikuwulula za chilengedwe, kugwiritsa ntchito, njira yopangira ndi chidziwitso cha chitetezo cha MEHQ:

 

Ubwino:

- Maonekedwe: MEHQ ndi madzi achikasu opepuka opanda utoto.

- Kusungunuka: MEHQ imasungunuka mu zosungunulira zina monga ma ethers, ma alcohols ndi ma ketoni, komanso osasungunuka m'madzi.

 

Gwiritsani ntchito:

- Ma Antioxidants: MEHQ imagwiritsidwa ntchito kwambiri ngati antioxidant mu rabara ndi zinthu zapulasitiki kuti italikitse moyo wake pansi pa kutentha kwakukulu komanso mikhalidwe ya radiation ya UV.

- Ma stabilizers owunikira: MEHQ imagwiritsidwanso ntchito popanga zoteteza ku dzuwa ndi zinthu zoteteza ku dzuwa chifukwa cha zinthu zake zolimbana ndi UV.

 

Njira:

Njira yodziwika yokonzekera MEHQ ndi esterification ya 2-methyl-3,4-pentadienic acid (Mesaconic acid) ndi ethanol, nthawi zambiri pansi pa acidic.

 

Zambiri Zachitetezo:

MEHQ ndi chinthu chapoizoni chomwe chingakhale chowopsa paumoyo ngati chikuwonekera ndikukokedwa. Nazi njira zodzitetezera:

- Valani zida zodzitetezera zoyenera, monga zovala zamaso ndi magolovesi, mukamagwiritsa ntchito.

- Gwiritsani ntchito pamalo olowera mpweya wabwino ndikupewa kutulutsa nthunzi wake.

- Sungani m'chidebe chopanda mpweya, kutali ndi moto komanso kutentha kwambiri.

 


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