Falanqaynta Dhibcaha Ethyl Acetate: Guryaha Aasaasiga ah iyo Waxyaabaha Saamaynta leh
Ethyl Acetate (EA) waa unug dabiici ah oo caadi ah oo leh codsiyo kala duwan. Waxaa caadi ahaan loo isticmaalaa sida dareere, dhadhamin iyo cunto lagu daro, waxaana loo door bidaa isbeddelkeeda iyo badbaadada qaraabada ah. Fahamka sifooyinka aasaasiga ah iyo arrimaha saameeya barta karkarinta ee ethyl acetate ayaa lagama maarmaan u ah isticmaalka wax soo saarka warshadaha.
Astaamaha Jirka ee Asaasiga ah ee Ethyl Acetate
Ethyl acetate waa dareere aan midab lahayn oo leh ur udgoon oo midho leh. Waxay leedahay caanaha molecular C₄H₈O₂ iyo miisaanka kelli ee 88.11 g/mol. Barta karkaraya ee ethyl acetate waa 77.1 ° C (350.2 K) cadaadiska atmospheric. Meeshan karkarinaysa waxay fududaynaysaa in lagu soo baxo heerkulka qolka, taas oo ka dhigaysa mid ku habboon in loo isticmaalo xaalado kala duwan oo codsi ah halkaas oo uumiga degdega ah looga baahan yahay.
Waxyaabaha saameeya barta karkarinta ee ethyl acetate

Saamaynta cadaadiska dibadda:

Barta karkarinta ee ethyl acetate waxay si dhow ula xiriirtaa cadaadiska deegaanka. Cadaadiska jawiga caadiga ah, barta karkarinta ee ethyl acetate waa 77.1 ° C. Si kastaba ha noqotee, marka cadaadiska hoos u dhaco, barta karkarinta ayaa hoos u dhacda si waafaqsan. Hantidan ayaa aad muhiim ugu ah codsiyada warshadaha, gaar ahaan vacuum distillation, halkaas oo barta karkarinta ee ethyl acetate si weyn loo dhimi karo, sidaas darteed saameynaya waxtarka habka kala-soocidda iyo nadiifinta.

Saamaynta nadiifinta iyo isku dhafka:

Nadiifinta ethyl acetate waxay sidoo kale saameyn ku leedahay barta karkarinta. Nadiifinta sareeysa ee ethyl acetate waxay leedahay meel karkarin ah oo xasiloon taasoo laga yaabo inay isbedesho marka lagu daro dareerayaasha kale ama kiimikooyinka. Dhacdada azeotropy ee isku dhafka ah waa tusaale caadi ah, kaas oo qaybo gaar ah oo ka mid ah ethyl acetate lagu qaso biyaha ay sameeyaan isku dar ah bar azeotropic gaar ah, taasoo keenaysa isku dar ah inay si wadajir ah u uumi-baxdo heerkulkaas.

Isdhexgalka unugyadu

Isdhexgalka molecular, sida isku xidhka hydrogen ama ciidamada van der Waals, aad bay u liidataa marka loo eego ethyl acetate laakiin wali waxay ku leeyihiin saameyn aan qarsooneyn barta ay karkarineyso. Sababtoo ah qaab-dhismeedka kooxda ester-ka ee molecule ethyl acetate, ciidamada intermolecular van der Waals waa kuwo aad u yar, taasoo keentay meel hoose oo karkaraya. Taas bedelkeeda, walxaha leh isdhexgalka molecular ee xooggan waxay caadi ahaan leeyihiin dhibco karkarin oo sarreeya.

Barta karkarinta ee ethyl acetate ee warshadaha

Ethyl acetate waxay leedahay barta karkarinta 77.1 ° C, hanti u horseeday isticmaalka baahsan ee dareeraha warshadaha kiimikada, gaar ahaan soo saarista rinjiga, dahaarka iyo xabagta. Barkeeda karkaraya ee hooseeya waxay u ogolaataa ethyl acetate inay si dhakhso ah u uumibaxdo, taasoo bixisa milmayn wanaagsan iyo sahlanaanta maaraynta. Warshadaha dawooyinka, ethyl acetate waxaa sida caadiga ah loo isticmaalaa soo saarista iyo nadiifinta xeryahooda organic, maadaama barta karkarinta dhexdhexaadka ah ay u oggolaanayso kala-saar hufan oo xeryahooda bartilmaameedka ah iyo wasakhda.

Si aan u soo koobo

Fahamka barta karkarinta ee ethyl acetate iyo arrimaha saameeya waxay lagama maarmaan u tahay wax soo saarka iyo codsiga warshadaha kiimikada. Adigoo si sax ah u xakameynaya cadaadiska agagaaraha, xakameynta nadiifinta walxaha, iyo tixgelinta isdhexgalka intermolecular, waxtarka isticmaalka ethyl acetate ayaa si wax ku ool ah loo wanaajin karaa. Xaqiiqda ah in ethyl acetate ay leedahay barta karkarinta ee 77.1 ° C waxay ka dhigaysaa dareeraha muhiimka ah iyo dhexdhexaadinta codsiyada warshadaha badan.