Izinto ezichaphazela indawo yokubila yeTetrarahdrofuran kunye nezicelo ezisebenzayo
I-Tetrarahydrofuran (thf) sisimo sezinto ezisetyenziswa ngokubanzi kwimveliso yekhemikhali kunye ne-stovevency ephezulu kunye netyhefu esezantsi, kwaye ke ngoko isetyenziswe ngokubanzi kwiNzululwazi yeZiseko. Kweli phepha, siya kuthetha ngobunzulu beempawu ezisisiseko zendawo yokubila yeTetrarafuran, ezi zinto ziyichaphazela kwaye zibaluleke kakhulu kwizicelo ezisebenzayo.
I. Iipropati ezisisiseko zeTetrarahydrofuran kunye nendawo yayo yokubila
I-Tetrarahydrofuran (thf) yi-tesclic i-tecthec kunye nefomathi yekhemikhali c4h8O. Njengesolvent esetyenziswayo esetyenziswayo, i-tetrarahydrofura lingenabala kwaye lingabonakali kubushushu begumbi kwaye linokuzinza okuphezulu. UTetrarahydrofuran unendawo yokubila malunga ne-66 ° C (malunga ne-339 k), eyenza ukuba kube lula ukukhupha kunye nokubuyisela kwiinkqubo ezininzi zekhemikhali. I-TetrarahyDrofuran's Poiling ikwindawo yokubila ikwathetha ukuba inokususwa kwinkqubo yokuphendula ngokuvakalayo ngokukhawuleza, ukunciphisa uphazamiso ngokusabela okulandelayo.
Izinto ezichaphazela indawo yokubila yeTetrarahdrofuran
Nangona indawo yokubila yeTetrarahdrofura inexabiso elisigxina kuncwadi lwamachiza, lokubilisa i-tetrarahdrofuran inokuchaphazeleka ngenxa yezinto ezininzi:
Impembelelo yengcinezelo ye-AMVE: Indawo yokubila yeTetrarahydrofura yahlukanisa noxinzelelo. Kwingcinezelo ye-themospic eqhelekileyo, indawo yokubila yeTetrarahdrofuran yi-66 ° C. Phantsi koxinzelelo oluphezulu okanye olusezantsi, indawo yokubila iya kutshintsha ngokufanelekileyo. Ngokubanzi, ukuphakama kwengcinezelo, ukuphakama kwendawo yokubila yeTetrarahdrofuran; Kwelinye icala, kwi-vacuum, indawo yokubila iya kuncipha.

Impembelelo yokucoceka: Ukungcola kwiTetrarahydrofura kuya kuba nefuthe kwindawo yayo yokubila. Ukuba isisombululo seTetrarahyroFuran sinexabiso eliphezulu lamanzi okanye ezinye izinto ezingcolileyo, indawo yokubila inokwahluka kwe-tetrahydrofuran emsulwa. Ngokukodwa, ubukho bomswakama, obunyibiliza kancinane emanzini, bunokwenza i-anzeotrope nge-thf, ngenxa yokutshintsha encinci kwindawo yokubila.

I-Azeotrapic phenomena: ekuzinzeni, i-tetrarahydrofuran ihlala ixutywe nezinye izinyibilikisi ukwenza umxube we-azeotropropic. Amanqaku abilayo awomxube ahlala ahlukile kwezo zinto zingatshatanga kunye ne-azetrolic yenza inkqubo yokwahlulahlula. Ke ngoko, xa ukhetha iTetrarahdrofuran njenge-Solvent, kubalulekile ukuqonda indlela eyayo ye-azetropic kunye nezinye izinto ezihlanganisiweyo.

III. Ukusetyenziswa okuSebenzayo kweTetrarahdrofurabili
Iipropati zeNgcebiso yokuHamba kweTetrarahdrofura zinezicelo ezibalulekileyo kwimveliso yemichiza:
Ukubuyiselwa kwakhona kunye nokubuya kwakhona kwezinyibilikisi: Kuba uTetrarahydrofura unendawo yokubila ephantsi, kulula ukuba iphinde ifumaneke kumxube wokuphendula ngokuphawuleka okanye ezinye iindlela zokuphazamiseka. Le ndawo ayincedi nje ukunciphisa iindleko zemveliso, kodwa inciphisa ifuthe kwindalo esingqongileyo.

Izicelo kwi-Polymerication: Kwezinye iindawo ze-polymeritions, uTetrarahydrofura unendawo ebilayo, evumela ukuba alawule ngokufanelekileyo ubushushu bokuphendula kwaye aqinisekise ukuba impendulo iqhubeka kakuhle. Ukuzinza kwayo kungashenxiswa ngokukhawuleza ekupheleni kwempendulo, ukuthintela iziphumo ezibi kucoceko lwemveliso.

Isicelo seSynthesis Synthesis: I-tetrarahydrofuran ihlala isetyenziswa njengesinyibilikisi kwinkqubo yesiyobisi, indawo yokubila iphakathi, elungele ukulawulwa ngokuthe ngqo kweemeko zokuphendula. I-Tetrarahydrofuran's Preperties's Preperties zenza ukuba isebenze kakhulu kwiinkqubo zokuphendula emva kokucamngca.

Ukuqukumbela
Indawo yokubila ye-tetrarahydrofuran yenye yeepropathi zayo eziphambili kwizicelo zemveliso. Ukuqonda indawo yokubila kweTetrarafuran kunye nefuthe lezinto zokuphembelela kunokunceda ulawule ngakumbi iimeko zokuphendula kwimveliso kunye nokusebenza kwemveliso kunye nokuvelisa impumelelo kwemveliso. Ukusetyenziswa kwengqondo Xa ukhetha kwaye usebenzisa i-tetrarahydrofuran njenge-Solvent, ukuqwalaselwa ngokupheleleyo kweempawu zayo zokubilisa kunye neyona nto iphambili kwiqhosha lokuqinisekisa ukhuseleko kunye nokusebenza kakuhle kweenkqubo zekhemikhali.