Indawo yokuBilisa ye-Ethyl Acetate: Uhlalutyo oluBanzi kunye neMiba echaphazelayo
I-Ethyl acetate yikhompawundi ephilayo esetyenziswa kakhulu kumashishini ekhemikhali, amayeza kunye nasekhaya. Ukuqonda iimpawu ezibonakalayo ze-ethyl acetate, ngokukodwa indawo yayo yokubilisa, ibalulekile ekulawuleni inkqubo kunye nokulungiswa kwesicelo. Kweli phepha, siza kujonga ngokujulileyo kwindawo yokubilisa ye-ethyl acetate kwaye sihlalutye izinto ezahlukeneyo ezichaphazelayo.
1. Indawo yokubilisa ye-ethyl acetate
I-Ethyl acetate ineqondo lokubila elingu-77.1°C (170.8°F). Le propati yomzimba ivumela i-ethyl acetate ukuba ibonise iimpawu ezibalaseleyo zokunyibilika kwiinkqubo ezininzi zoshishino, ngokukodwa kwizicelo ezifuna ukukhuphuka kobushushu obuphakathi, njengokulungiswa kweengubo kunye nokunamathiswa.
2. Izinto ezichaphazela indawo yokubilisa ye-ethyl acetate
Nangona umgangatho wokubilisa oqhelekileyo we-ethyl acetate ngu-77.1 ° C, indawo yokubilisa yayo inokuchaphazeleka ngenani lezinto zangaphandle. Ezi zilandelayo zimbalwa zeempembelelo eziphambili:

Uxinzelelo: Uxinzelelo lunefuthe elithe ngqo kwindawo yokubilisa ye-ethyl acetate. Ngokuqhelekileyo, ukunyuka koxinzelelo kubangela indawo ephezulu yokubilisa, ngelixa ukuhla koxinzelelo kubangela indawo ephantsi yokubilisa. Ngokomzekelo, ngexesha lokunciphisa uxinzelelo lwe-distillation, ukunciphisa uxinzelelo lwenkqubo kunokunciphisa kakhulu indawo yokubilisa ye-ethyl acetate, okukhokelela ekuhlukaneni kweqondo lokushisa eliphantsi.

Ubunyulu: Ukucoceka kwe-ethyl acetate nayo enye yezinto eziphambili ezichaphazela indawo yayo yokubilisa. Ngokuqhelekileyo, ukuphakama kokucoceka, iqondo lokubilisa lisondela kwixabiso lethiyori lika-77.1 ° C. Ukuba i-ethyl acetate iqulethe ukungcola okanye ezinye i-solvents, eyona ndawo yokubilisa ingaphambuka kwixabiso eliqhelekileyo, kuxhomekeke kubume bomxube.

Imixube: I-acetate ye-Ethyl idla ngokuxutywa kunye nezinye izinyibilikisi, kwaye ukubunjwa kwemixube enjalo kunempembelelo ebalulekileyo kwindawo yokubilisa. Ngokomzekelo, xa ixutywe ne-ethanol okanye amanzi, indawo yokubilisa yomxube iyahluka ngokwemilinganiselo kunye nokusebenzisana kwamacandelo, kwaye oku kuhluka kunokuqikelelwa ngumzobo wesigaba.

3. Ukubaluleka kunye nokusetyenziswa kwendawo yokubilisa ye-ethyl acetate
Ukuqonda kunye nokulawula indawo yokubilisa ye-ethyl acetate kubalulekile kwizicelo ezininzi zoshishino. Kwishishini lamachiza, apho i-ethyl acetate isetyenziswa ngokuqhelekileyo njenge-reaction and purification solvent, ukulawulwa ngokuchanekileyo kwendawo yokubilisa kunceda ukuqinisekisa ukuveliswa kweziyobisi ngokufanelekileyo kunye nokukhuselekileyo. Kwishishini leengubo, ukuguquguquka kwe-ethyl acetate kuchaphazela ngokuthe ngqo isantya sokumisa kunye nomgangatho wokugqibela wefilimu yeengubo. Kwinkqubo yemveliso yeekhemikhali ezintle, ulawulo oluchanekileyo lwamanqaku okubilisa lunokuphucula ukucoceka kunye nesivuno semveliso. 4.
4. Indlela yokulawula indawo yokubilisa ye-ethyl acetate
Ukwandisa ukusetyenziswa kwe-ethyl acetate kwizicelo zoshishino, kubalulekile ukulawula indawo yayo yokubilisa. Iindlela zolawulo eziqhelekileyo ziquka:

Ukulungelelanisa inkqubo yoxinzelelo lwenkqubo: Ngokusebenzisa izixhobo zokunciphisa uxinzelelo oluncitshisiweyo, kunokwenzeka ukuba uphuphe kwaye uhlukanise i-ethyl acetate kumaqondo okushisa aphantsi, ngaloo ndlela ugcina amandla kwaye ugweme umonakalo kwizinto ezinobushushu obuvela kumaqondo aphezulu.

Ukukhetha ukucoceka kwe-solvent efanelekileyo: Kuyilo lwenkqubo, ukukhetha ukucoceka okuphezulu kwe-ethyl acetate kunokunciphisa ukuguquguquka kwamanqaku abilayo kunye nokuqinisekisa inkqubo yokuvelisa ehambelanayo.

Ukulungelelaniswa komlinganiselo wokuxutywa: Apho imixube ye-ethyl acetate ifuneka, indawo yokubilisa iyonke yomxube inokulungiswa ukuhlangabezana neemfuno ezithile zenkqubo ngokwandisa umlinganiselo wamacandelo.

Isishwankathelo
Indawo yokubilisa ye-ethyl acetate yenye yezona zinto zibaluleke kakhulu kwiimpawu zayo zomzimba, ezichaphazela ngokuthe ngqo ukusebenza kwayo kwizicelo zoshishino. Ukuqonda ngokucokisekileyo indawo yokubilisa ye-ethyl acetate kunye nezinto ezichaphazelayo kuya kwenza ukusetyenziswa okungcono kwale khompawundi kunye nokuphucula ukusebenza kakuhle kwenkqubo yokuvelisa kunye nomgangatho wemveliso. Enyanisweni, ulwazi lweempembelelo zokutshintsha uxinzelelo, ukucoceka kunye nomxube kwindawo yokubilisa ye-ethyl acetate yindlela ebalulekileyo yokuphucula iiparameters zenkqubo.