Qhov sib txawv tseem ceeb ntawm ethanol thiab methoxymethane yog tias ethanol tshwm sim los ua cov kua tsis muaj xim uas tsis muaj xim uas tsis muaj zog nyob rau hauv chav tsev kub, qhov methoxymethane tshwm sim ua cov pa tsis muaj xim ntawm chav tsev kub.
Ethanol thiab methoxymethane muaj cov qauv tshuaj tib yam tab sis cov qauv tshuaj sib txawv, uas txiav txim siab cov khoom sib txawv ntawm cov tshuaj no. Ethanol lossis ethyl cawv yog cov organic compound uas muaj cov tshuaj formula C2H5OH. Methoxymethane yog ib qho ether compound uas muaj cov tshuaj formula C2H6O.
Ethanol yog dab tsi?
Ethanol lossis ethyl cawv yog cov organic compound uas muaj cov tshuaj formula C2H5OH. Nws muaj txiaj ntsig zoo li roj. Txawm li cas los xij, nws yog tib qho chaw peb pom hauv cov dej cawv. Feem ntau, cov roj no yog siv los ua cov roj hluav taws xob, ua biofuel additive rau roj av.
Daim duab 01: Ib Lub raj mis ntawm Ethanol
Nws muaj peev xwm tsim ethanol los ntawm kev siv tshuaj lom neeg lossis tshuaj lom neeg. Cov kauj ruam tseem ceeb ntawm kev tsim ethanol los ntawm kev siv tshuaj lom neeg muaj xws li fermentation, distillation, thiab lub cev qhuav dej. Thaum lub sij hawm fermentation, microbes ua rau cov suab thaj hloov mus rau hauv ethanol. Cov kauj ruam distillation yuav tshem tawm cov microbes thiab feem ntau ntawm cov dej. Nyob ntawd, cov khoom ntawm fermentation yog rhuab, yog li cov ethanol feem evaporates. Tom qab ntawd, peb yuav tsum dehydrate cov khoom kawg ntawm distillation thiaj li tau txais ib feem ntshiab ntawm ethanol. Tsis tas li ntawd, kev tsim cov ethanol los ntawm kev siv tshuaj muaj xws li reacting ethene nrog chav.
Methoxymethane yog dab tsi?
Methoxymethane yog ib qho ether compound uas muaj cov tshuaj formula C2H6O. Lub npe nrov ntawm cov tshuaj no yog dimethyl ether. Cov compound no paub zoo rau nws cov khoom hnyav. Nws muaj ob pawg methyl sib koom ua ke ntawm cov pa atom; ob pawg methyl raug khi rau tib lub atom oxygen.
Cov molar loj ntawm methoxymethane yog 46.07 g / mol. Lub melting point ntawm cov khoom no yog -141 degrees Celsius thaum lub boiling point -24 degrees Celsius. Nws tshwm sim raws li cov pa tsis muaj xim ntawm chav tsev kub thiab muaj cov ntxhiab tsw zoo li ether. Tsis tas li ntawd, dimethyl ether tsis yog dej-soluble.
Daim duab 02: Cov Qauv Tshuaj ntawm Methoxymethane
Dimethyl ether yog ib qho tsis muaj polar compound. Qhov no txhais tau tias dimethyl ether tsis muaj polarity. Qhov no yog vim nws cov qauv symmetrical molecular. Yog li ntawd, nws yog ib qho hnyav hnyav rau cov tsis muaj polar compounds. Txawm li cas los xij, nws tsis muaj tshuaj lom thaum piv rau lwm cov organic tebchaw.
Qhov txawv ntawm Ethanol thiab Methoxymethane yog dab tsi?
Ethanol thiab methoxymethane muaj cov qauv tshuaj tib yam tab sis cov qauv tshuaj sib txawv, uas txiav txim siab cov khoom sib txawv ntawm cov tshuaj no. Qhov sib txawv tseem ceeb ntawm ethanol thiab methoxymethane yog tias ethanol tshwm sim raws li cov kua tsis muaj xim uas muaj qhov tsis zoo ntawm chav tsev kub, qhov methoxymethane tshwm sim ua cov roj tsis muaj xim ntawm chav tsev kub.
Tsis tas li ntawd, ethanol yog ib qho cawv uas muaj ntxhiab tsw ntxhiab, thaum methoxymethane yog ether muaj ntxhiab tsw zoo li ether. Tsis tas li ntawd, ethanol thiab methoxymethane muaj cov qauv tshuaj zoo sib xws uas tau teeb tsa hauv cov qauv sib txawv; Piv txwv li, ethanol muaj ib pawg hydroxyl (OH pawg) thaum methoxymethane tsis muaj pawg hydroxyl.
Cov ntawv qhia hauv qab no nthuav tawm qhov sib txawv ntawm ethanol thiab methoxymethane hauv daim ntawv teev npe rau ib sab ntawm kev sib piv.
Summary – Ethanol vs Methoxymethane
Ethanol lossis ethyl cawv yog cov organic compound uas muaj cov tshuaj formula C2H5OH. Methoxymethane yog ib qho ether compound uas muaj cov tshuaj formula C2H6O. Qhov sib txawv tseem ceeb ntawm ethanol thiab methoxymethane yog tias ethanol tshwm sim raws li cov kua tsis muaj xim uas muaj qhov tsis zoo ntawm chav tsev kub, qhov methoxymethane tshwm sim ua cov roj tsis muaj xim ntawm chav tsev kub.
