Indawo yokubilisa ye-n-hexane: uhlalutyo olucacileyo kunye nengxoxo yesicelo
I-Hexane yinto eqhelekileyo ye-solvent kwishishini lemichiza, kunye neempawu zayo ezibonakalayo, njengendawo yokubilisa, zinefuthe elithe ngqo kwindawo kunye nendlela esetyenziswa ngayo. Ngoko ke, ukuqonda okunzulu kwendawo yokubilisa ye-n-hexane kunye neempawu zayo ezinxulumene nayo kubaluleke kakhulu kwiingcali kwishishini lemichiza. Kweli nqaku, siza kuxubusha isihloko senqaku lokubilisa le-n-hexane ngokubanzi kwaye sihlalutye iimpawu zayo zokubilisa, izinto ezichaphazelayo kunye nokusetyenziswa okusebenzayo.
Isishwankathelo sendawo yokubila yehexane
IHexane ineqondo lokubila elingu-68.7°C (malunga ne-342 K). Eli qondo lobushushu lenza ukuba liziphathe njengolwelo olungenambala, olusezantsi lwe-viscosity kubushushu begumbi kunye noxinzelelo. Iimpawu ezisezantsi zokubilisa ze-hexane zenza ukuba ibe sisinyibilikisi esifanelekileyo sokusetyenziswa kushishino, ngakumbi kwiinkqubo ezifuna ukuvela komphunga okukhawulezayo, okufana nokutsalwa kwegrisi, izicoci kunye nokugquma.
Izinto ezichaphazela indawo yokubilisa ye-hexane
Nangona i-hexane ineqondo lokubilisa eliqhelekileyo elingu-68.7°C, eyona ndawo yokubilisa kwayo inokwahluka ngokuxhomekeke kwizinto ezininzi. Uxinzelelo lwe-atmospheric yinto ebalulekileyo enempembelelo. Kwiindawo eziphakamileyo okanye uxinzelelo oluphantsi, indawo yokubilisa ye-hexane iya kuba ngaphantsi kwe-68.7 ° C, oku kuthetha ukuba iya kunyuka ngokukhawuleza. Ngokwahlukileyo, phantsi kweemeko zoxinzelelo oluphezulu, indawo yayo yokubilisa iya kunyuka kancane.
Ukucoceka kwe-hexane kwakhona kuchaphazela indawo yayo yokubilisa. Ukuba i-hexane iqulethe ukungcola, njengezinye i-alkanes, iqondo lokubila kwayo lingatshintsha. Ngokuqhelekileyo, ubukho bokungcola bubangela ukwanda kwinqanaba lokubilisa okanye ukuvelisa uluhlu lwamanqaku okubilisa kunokuba ixabiso elilodwa lokubilisa.
Ukusetyenziswa kweendawo zokuBilisa zeHexane kwiShishini
Indawo yokubilisa ephantsi ye-hexane yenza ukuba ibaluleke kwizicelo ezininzi zoshishino. Ngokomzekelo, kwishishini le-oyile kunye ne-fat extraction, i-hexane isoloko isetyenziselwa ukukhupha ioli kunye namafutha kwimbewu yezityalo. Iqondo layo eliphantsi lokubilisa liqinisekisa ukuba i-solvent ikhupha ngokukhawuleza ekupheleni kwenkqubo yokukhupha kwaye ayishiyi i-residus engaphezulu kwimveliso yokugqibela, ngaloo ndlela iphucula ukucoceka kwayo kunye nomgangatho.
I-Hexane isetyenziswa ngokubanzi kwiinkqubo zokucoca kunye nokunciphisa. Kwezi zicelo, indawo yokubilisa ephantsi ye-hexane ivumela ukuba ikhuphe ngokukhawuleza, iqinisekise ukomisa ngokukhawuleza emva kokucoca izixhobo kunye neendawo, ngelixa kunciphisa impembelelo yolwelo oluseleyo kwiinkqubo ezilandelayo.
Ukuqukumbela
Indawo yokubilisa ye-n-hexane ingaphezulu kokungaguquguquki komzimba; inoluhlu olubanzi lokubaluleka okusebenzayo kwizicelo zoshishino. Ukuqonda indawo yokubilisa ye-n-hexane kunye nezinto ezichaphazelayo kunokunceda iingcali zoshishino lwemichiza zikhethe ngcono kwaye zisebenzise le nto yokucoca ukuphucula imveliso kunye nokuqinisekisa umgangatho wemveliso. Iimpawu zamanqaku abilayo e-n-hexane zidlala indima engenakuthathelwa indawo kwiimeko zemizi-mveliso eyahlukeneyo. Ke ngoko, uphononongo olunzulu kunye nokuqonda indawo yokubilisa ye-n-hexane ibalulekile ekuphuculeni inkqubo.