Qhov sib txawv tseem ceeb ntawm ethanol thiab propanol yog tias ethanol muaj ob lub pa roj carbon atoms ib molecule whereas propanol muaj 3 carbon atoms ib molecule.
Ob leeg ethanol thiab propanol yog cov tshuaj cawv uas muaj cov pab pawg hydroxyl (-OH) ua cov haujlwm ua haujlwm ntawm cov molecule. Tsis tas li ntawd, ob qho tib si yog qhov yooj yim tshaj ntawm cov cawv. Txij li thaum ethanol tsuas muaj ob lub carbon atoms, tsuas muaj ib lub molecule uas peb tuaj yeem hu ua ethanol. Txawm li cas los xij, propanol muaj peb carbon atoms. Yog li ntawd, muaj peev xwm muaj ntau yam qauv rau tib lub molecule vim txawv structural thiab spatial kev npaj ntawm cov atoms. Peb hu cov qauv sib txawv no ua "isomers" ntawm propanol. Txawm li cas los xij, peb feem ntau xa mus rau 1-propanol thaum peb tham txog qhov sib xyaw no.
Ethanol yog dab tsi?
Ethanol yog cov organic compound uas muaj cov tshuaj formula C2H5OH. Peb tuaj yeem sau cov qauv no li CH3−CH2-OH lossis ua C2H 5-OH. Txawm li cas los xij, nws sawv cev rau pawg hydroxyl (-OH) hauv cawv. Cov tshuaj no yog volatile thiab heev flammable. Tsis tas li ntawd, nws yog cov kua xim tsis muaj xim nrog cov yam ntxwv tsw. Qhov tseem ceeb tshaj plaws, nws yog cov dej cawv loj uas peb tuaj yeem pom hauv cov dej cawv.
Daim duab 01: Cov qauv tshuaj ntawm Ethanol
Peb tuaj yeem tsim cov khoom sib xyaw no los ntawm kev fermentation ntawm cov suab thaj los ntawm cov poov xab raws li txoj hauv kev lom neeg. Los yog lwm yam, peb tuaj yeem siv cov txheej txheem petrochemical. Saib ntawm nws cov khoom siv tshuaj, cov molar loj ntawm cov tshuaj no yog 46.07 g / mol. Lub melting point yog nyob ib ncig ntawm -114.14 ° C, thiab lub boiling point yog nyob ib ncig ntawm 78.24 ° C. Tsis tas li ntawd, nws yog miscible nrog dej vim nws tuaj yeem tsim hydrogen bonds nrog dej molecules.
Thaum xav txog kev siv ethanol, muaj kev siv kho mob, siv ua si, roj thiab ua kuab tshuaj. Nws muaj cov nyhuv antiseptic thiab peb kuj tuaj yeem siv nws ua tshuaj tua kab mob. Yog li ntawd, nws yog ib qho tseem ceeb raws li ib tug tshuaj hnyav nyob rau hauv kev lag luam kws tshuaj. Tsis tas li ntawd, nws yog ib hom roj cav, thiab zoo ib yam, nws muaj txiaj ntsig zoo li roj ntxiv.
YPropanol yog dab tsi?
Propanol yog cov organic compound uas muaj cov tshuaj formula C3H8O. Nws yog cov kua uas tsis muaj xim thiab muaj xim me me, muaj ntxhiab tsw ntxhiab. Txij li thaum muaj peb carbon atoms nyob rau hauv propanol molecule, nws muaj isomers. Qhov no txhais tau tias, peb cov carbon atoms tuaj yeem npaj ntau txoj hauv kev los muab kev sib txawv thiab cov qauv ntawm tib lub molecule. Piv txwv li, 1-propanol thiab 2-propanol.
Daim duab 02: Cov qauv tshuaj ntawm Propanol
Tsis tas li ntawd, cov molar loj ntawm cov tshuaj no yog 60.1 g / mol. Rau 1-propanol, lub melting point yog -126 ° C thiab boiling point yog 98 ° C. Tsis tas li ntawd, tib yam li ethanol, propanol yog miscible nrog dej vim tias nws tuaj yeem tsim hydrogen bonds nrog hydroxyl functional pawg. Yog li, peb tuaj yeem tsim cov tshuaj no los ntawm catalytic hydrogenation ntawm propionaldehyde.
Qhov txawv ntawm Ethanol thiab Propanol yog dab tsi?
Ethanol yog cov organic compound uas muaj cov tshuaj formula C2H5OH whereas Propanol yog cov organic compound uas muaj cov tshuaj formula C 3H8O. Ob qho no yog cov tshuaj cawv. Tab sis, ib qho ethanol molecule muaj ob lub carbon atoms thaum ib tug propanol molecule muaj peb carbon atoms. Yog li, qhov no yog qhov sib txawv loj ntawm ethanol thiab propanol. Ntxiv mus, lwm qhov sib txawv ntawm ethanol thiab propanol yog tias ethanol tsis muaj isomers, tab sis propanol muaj isomers. Nyob rau hauv tag nrho, ethanol thiab propanol yog ob hom tshuaj sib txawv uas muaj cov sib txawv ntawm cov atoms, yog li sib txawv molar masses, melting point thiab boiling point.
Cov hauv qab no qhia txog qhov sib txawv ntawm ethanol thiab propanol hauv daim ntawv tabular.
Summary – Ethanol vs Propanol
Ob leeg ethanol thiab propanol yog cov tshuaj cawv. Tab sis, qhov sib txawv tseem ceeb ntawm ethanol thiab propanol yog tias ethanol muaj ob lub pa roj carbon atoms ib molecule whereas propanol muaj 3 carbon atoms ib molecule.
