Ethyl Acetate Boiling Point Analysis: Basic Properties and Influencing Factors
Ethyl Acetate (EA) ndi wamba organic pawiri ndi osiyanasiyana ntchito. Nthawi zambiri amagwiritsidwa ntchito ngati zosungunulira, zokometsera komanso zowonjezera chakudya, ndipo amakondedwa chifukwa chakusakhazikika kwake komanso chitetezo chake. Kumvetsetsa zoyambira ndi zinthu zomwe zimakhudza kuwira kwa ethyl acetate ndikofunikira kuti zigwiritsidwe ntchito popanga mafakitale.
Zinthu Zoyambira Zathupi za Ethyl Acetate
Ethyl acetate ndi madzi opanda mtundu okhala ndi fungo lonunkhira ngati zipatso. Ili ndi mamolekyu a C₄H₈O₂ ndi kulemera kwa molekyulu ya 88.11 g / mol. Malo otentha a ethyl acetate ndi 77.1 ° C (350.2 K) pamlengalenga. Kuwiraku kumapangitsa kuti zisamavute mosavuta kutentha kwa chipinda, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito pazochitika zosiyanasiyana zomwe zimafunika kuti zisawonongeke.
Zomwe zimakhudza kuwira kwa ethyl acetate

Zotsatira za kukakamiza kwakunja:

Malo otentha a ethyl acetate amagwirizana kwambiri ndi kupanikizika kozungulira. Pakuthamanga kwa mlengalenga, malo otentha a ethyl acetate ndi 77.1 ° C. Komabe, pamene kupanikizika kumachepa, kutentha kumachepa moyenerera. Katunduyu ndi wofunikira kwambiri pakugwiritsa ntchito mafakitale, makamaka mu distillation ya vacuum, pomwe malo otentha a ethyl acetate amatha kuchepetsedwa kwambiri, motero zimakhudza magwiridwe antchito olekanitsa ndi kuyeretsa.

Zotsatira za ukhondo ndi kusakaniza:

Kuyera kwa ethyl acetate kumakhudzanso kuwira kwake. High purity ethyl acetate imakhala ndi malo otentha omwe amatha kusintha akasakanikirana ndi zosungunulira zina kapena mankhwala. Chochitika cha azeotropy cha zosakaniza ndi chitsanzo chodziwika bwino, momwe zigawo zina za ethyl acetate zosakanikirana ndi madzi zimapanga kusakaniza ndi mfundo yeniyeni ya azeotropic, zomwe zimapangitsa kuti chisakanizocho chisasunthike palimodzi kutentha.

Kuyanjana kwa ma Intermolecular:

Kuyanjana kwa ma intermolecular, monga hydrogen bonding kapena van der Waals forces, ndizochepa kwambiri mu ethyl acetate koma zimakhalabe ndi zotsatira zobisika pa kuwira kwake. Chifukwa cha kapangidwe ka gulu la ester mu molekyulu ya ethyl acetate, mphamvu za intermolecular van der Waals ndizochepa, zomwe zimapangitsa kuti pakhale kuwira kochepa. Mosiyana ndi izi, zinthu zomwe zimakhala ndi ma intermolecular amphamvu nthawi zambiri zimakhala ndi zowotchera kwambiri.

Malo otentha a ethyl acetate m'makampani

Ethyl acetate ili ndi kutentha kwa 77.1 ° C, malo omwe amachititsa kuti anthu ambiri azigwiritsidwa ntchito ngati zosungunulira m'makampani opanga mankhwala, makamaka popanga utoto, zokutira ndi zomatira. Kutentha kwake kocheperako kumapangitsa kuti ethyl acetate isungunuke mwachangu, ndikupangitsa kusungunuka kwabwino komanso kusavuta kugwira. M'makampani opanga mankhwala, ethyl acetate amagwiritsidwa ntchito kwambiri pochotsa ndi kuyeretsa zinthu zamagulu, chifukwa kutentha kwake kocheperako kumalola kulekanitsa bwino kwazinthu zomwe mukufuna komanso zonyansa.

Kufotokozera mwachidule

Kumvetsetsa kuwira kwa ethyl acetate ndi zomwe zimapangitsa kuti zikhale zofunikira pakupanga ndi kugwiritsa ntchito makampani opanga mankhwala. Mwa kuwongolera moyenera kupanikizika kozungulira, kuwongolera chiyero cha zinthu, ndikuganizira kuyanjana kwapakati pa mamolekyulu, kugwiritsa ntchito bwino kwa ethyl acetate kumatha kukonzedwa bwino. Mfundo yakuti ethyl acetate ili ndi kutentha kwa 77.1 ° C imapangitsa kuti ikhale yosungunulira yofunikira komanso yapakatikati m'mafakitale ambiri.