Ethyl Acetate Boiling Point Analysis: Nā waiwai kumu a me nā mea hoʻoikaika
ʻO ka Ethyl Acetate (EA) kahi hui kūlohelohe maʻamau me kahi ākea o nā noi. Hoʻohana maʻamau ia e like me ka solvent, flavoring a me ka meaʻai hoʻohui, a makemake ʻia no kona volatility a me ka palekana pili. ʻO ka hoʻomaopopo ʻana i nā waiwai kumu a me nā mea e pili ana i ka paila paila o ka ethyl acetate he mea nui ia no ka hoʻohana ʻana i ka hana ʻoihana.
Nā Pono Kino Kuleana o Ethyl Acetate
He wai kala ʻole ʻo Ethyl acetate me kahi ʻala ʻala like me ka hua. Loaʻa iā ia ka molecular formula C₄H₈O₂ a me ke kaumaha molekala o 88.11 g / mol. ʻO ka paila paila o ka ethyl acetate he 77.1 ° C (350.2 K) ma ke kaomi ea. ʻO kēia wahi paila e maʻalahi ka evaporate ma ka lumi wela, e kūpono ai no ka hoʻohana ʻana i nā ʻano hiʻohiʻona noiʻi kahi e koi ʻia ai ka evaporation wikiwiki.
Nā mea e pili ana i ka helu paila o ka ethyl acetate

Ka hopena o ke kaomi o waho:

ʻO ke kumu hoʻolapalapa o ka ethyl acetate pili loa i ke kaomi ambient. Ma ke kaomi lewa maʻamau, ʻo ka helu hoʻolapalapa o ka ethyl acetate he 77.1°C. Eia naʻe, i ka emi ʻana o ke kaomi, e emi ana ka paila paila e like me ia. He mea koʻikoʻi loa kēia waiwai i nā noi ʻoihana, ʻoi aku hoʻi i ka distillation vacuum, kahi e hoʻemi nui ʻia ai ka paila o ka ethyl acetate, no laila e pili ana i ka pono o ka hoʻokaʻawale a me ka hoʻomaʻemaʻe kaʻina.

Ka hopena o ka maʻemaʻe a me ka hui ʻana:

ʻO ka maʻemaʻe o ka ethyl acetate kekahi hopena i kona wahi paila. ʻO ka ethyl acetate maʻemaʻe kiʻekiʻe he wahi paila paʻa i hiki ke loli ke hoʻohui ʻia me nā mea hoʻoheheʻe a i ʻole kemika. ʻO ke ʻano o ka azeotropy o ka hui ʻana he laʻana maʻamau, kahi i hoʻohui ʻia ai kekahi mau ʻāpana o ka ethyl acetate i hui pū ʻia me ka wai i hui pū ʻia me kahi kiko azeotropic kikoʻī, e hoʻoheheʻe pū ai ka hui ʻana i kēlā mahana.

ʻO ka pilina ma waena o nā molecular:

ʻO nā pilina waena, e like me ka hoʻopaʻa ʻana i ka hydrogen a i ʻole nā ​​mana van der Waals, he nāwaliwali loa i ka ethyl acetate akā loaʻa ka hopena maʻalahi i kona wahi paila. Ma muli o ke ʻano o ka pūʻulu ester i loko o ka molekele ethyl acetate, ʻuʻuku ka liʻiliʻi o nā pūʻali intermolecular van der Waals, e loaʻa ana kahi wahi paila haʻahaʻa. ʻO ka ʻokoʻa, ʻoi aku ka nui o nā mea me nā pilina intermolecular ikaika loa.

ʻO kahi paila o ka ethyl acetate ma ka ʻoihana

Loaʻa i ka Ethyl acetate kahi paila o 77.1 ° C, kahi waiwai i alakaʻi i kona hoʻohana nui ʻana ma ke ʻano he solvent i ka ʻoihana kemika, ʻoi loa i ka hana ʻana i nā pena, nā uhi a me nā mea hoʻopili. ʻO kona wahi paila haʻahaʻa e hiki ai i ka ethyl acetate ke evaporate wikiwiki, e hāʻawi ana i ka solubility maikaʻi a me ka maʻalahi o ka lawelawe ʻana. I ka ʻoihana lāʻau lapaʻau, hoʻohana mau ʻia ka ethyl acetate no ka unuhi ʻana a me ka hoʻomaʻemaʻe ʻana i nā pūhui organik, no ka mea, ʻo kona wahi hoʻolapalapa haʻahaʻa e hiki ai ke hoʻokaʻawale maikaʻi i nā pūhui a me nā haumia.

E hōʻuluʻulu

ʻO ka hoʻomaopopo ʻana i ka pae paila o ka ethyl acetate a me nā mea e hoʻohuli ai he mea nui ia no ka hana ʻana a me ka hoʻohana ʻana i ka ʻoihana kemika. Ma ka hoʻoponopono pono ʻana i ke kaomi ambient, kaohi ʻana i ka maʻemaʻe o nā mea, a me ka noʻonoʻo ʻana i nā pilina intermolecular, hiki ke hoʻomaʻamaʻa maikaʻi ʻia ka pono o ka hoʻohana ʻana i ka ethyl acetate. ʻO ka ʻoiaʻiʻo o ka ethyl acetate he wahi paila o 77.1 ° C e lilo ia i mea hoʻoheheʻe koʻikoʻi a waena i nā noi ʻoihana he nui.