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Inoa Huahana：Ethyl acetate

ʻAno molekala:C4H8O2

No CAS:141-78-6

Huahana molecular structure：

Na Waiwai Kemika:

ʻO Ethyl acetate (ke ʻano i hōʻike ʻia ma luna) ʻo ia ka ester kamaʻāina loa i nā haumāna kemika he nui a ʻo ka ester paha me ka laulā o nā hoʻohana. Hoʻokumu ʻia nā Esters mai nā waikawa carboxylic ma o ka hoʻololi ʻana i ka hydrogen acidic e kahi hui alkyl a i ʻole aryl. ʻO ka Ethyl acetate ponoʻī he wai kala ʻole i ka lumi wela me kahi ʻala "hua" ʻoluʻolu, bp 77°C.

He nui nā hoʻohana ʻana o ka Ethyl acetate, e like me nā ʻano huaʻala a me nā mea hoʻonani ʻala, nā mea ʻono no ka confectionery, ice cream a me nā keke, ma ke ʻano he solvent i nā noi he nui (me ka decaffeinating ti a me ka kofe) no nā varnish a me nā pena (nail varnish remover), a no ka ka hana ʻana i nā ʻīnika pai a me nā mea ʻala.

Noi:

Hoʻohana nui ʻia ʻo Ethyl acetate ma ke ʻano he mea hoʻoheheʻe a me ka diluent, makemake ʻia ma muli o kona kumu kūʻai haʻahaʻa, haʻahaʻa haʻahaʻa, a me ke ʻala ʻoluʻolu. No ka laʻana, hoʻohana maʻamau ia e hoʻomaʻemaʻe i nā papa kaapuni a i kekahi mau mea hoʻoneʻe varnish nail (hoʻohana pū ʻia ka acetone a me ka acetonitrile). Hoʻohana ʻia nā pīni kofe a me nā lau kī me kēia solvent. Hoʻohana ʻia ia i nā pena ma ke ʻano he mea hoʻoikaika a paʻakikī paha. I loko o nā mea ʻala, hoʻoheheʻe koke ʻia, waiho wale ka ʻala o ka ʻala ma ka ʻili.
3 – 1 – Ke hoʻohana ʻana i ka Laboratory
I loko o ke keʻena hoʻokolohua, hoʻohana mau ʻia nā hui ʻana me ka ethyl acetate i ke kolamu chromatography a me nā unuhi. ʻAʻole hiki ke koho ʻia ka Ethyl acetate ma ke ʻano he mea hoʻoheheʻe hopena no ka mea hiki ke hana i ka hydrolysis a me ka trans esterification.
3 – 2 – Ka hana ʻana i nā waina
ʻO ka Ethyl acetate ka ester maʻamau i loko o ka waina, ʻo ia ka huahana o ka waika organic volatile maʻamau - acetic acid, a me ka ethyl alcohol i hana ʻia i ka wā fermentation. ʻOi loa ka ʻala o ka ethyl acetate i nā waina ʻōpio a kōkua i ka ʻike maʻamau o ka "hua" i ka waina.
3 – 3 – He mea pepehi kanaka
Ma ke kahua o ka entomology, ʻo ka ethyl acetate kahi asphyxiant maikaʻi no ka hoʻohana ʻana i ka ʻohi ʻana a me ke aʻo ʻana. I loko o kahi pahu pepehi i hoʻopaʻa ʻia me ka ethyl acetate, e pepehi koke nā mahu i ka ʻōpala i hōʻiliʻili ʻia (maʻamau maʻamau) me ka luku ʻole iā ia. No ka mea, ʻaʻole ia he hygroscopic, mālama pū ka ethyl acetate i ka nalo i mea palupalu e ʻae i ka kau ʻana kūpono no kahi hōʻiliʻili.