Qhov sib txawv tseem ceeb ntawm ethanol thiab dimethyl ether yog tias ethanol yog cov kua tsis muaj xim nyob rau hauv chav tsev kub uas muaj volatility siab thaum dimethyl ether yog cov roj tsis muaj xim ntawm chav tsev kub. Ntxiv ethanol (ib lub npe yog ethyl cawv) yog cawv thaum dimethyl ether yog ether.
Ib cawv yog ib qho organic compound uas muaj cov pab pawg hydroxyl (-OH) ua pab pawg ua haujlwm. Ib qho ether kuj yog cov organic compound, tab sis nws muaj ob pawg alkyl txuas rau tib lub atom oxygen.
Ethanol yog dab tsi?
Ethanol yog cawv muaj cov tshuaj formula C2H5OH. Lub npe nrov ntawm cov tshuaj no yog ethyl cawv. Cov pab pawg ua haujlwm ntawm cov tshuaj no yog ib pawg hydroxyl (-OH). Ethanol yog cov nplaim taws heev; yog li ntawd, nws yog siv los ua roj ib yam nkaus. Tsis tas li ntawd, nws yog ib qho kev sib txuam heev. Txawm li cas los xij, nyob rau hauv chav tsev kub, nws yog cov kua uas tsis muaj xim nrog cov ntxhiab tsw.
Daim duab 1: Cov Qauv Tshuaj ntawm Ethanol
Qee Cov Lus Tseeb Txog Ethanol
- Chemical formula=C2H6O
- Molar mass=07 g/mol
- melting point=-114.1 °C
- Boiling point=78.37 °C
- Lub cev lub cev=nyob rau hauv chav tsev kub, nws tshwm sim ua kua tsis muaj xim
- Odour=yam ntxwv cawv tsw qab
- dej solubility=miscible nrog dej
Ethanol yog miscible nrog dej vim tias nws tuaj yeem tsim hydrogen bonds nrog dej molecules (cov -OH pawg tuaj yeem tsim hydrogen bonds nrog H2O molecules). Yog li ntawd, cov kev daws teeb meem siv tau siab viscosity. Tsis tas li ntawd, qhov volatility txo qis thaum ethanol tov nrog dej.
Ethanol yog ib qho polar compound vim nws muaj ib pawg hydroxyl terminal. Nws ua rau ethanol ua kuab tshuaj zoo rau cov polar compounds. Muaj ob txoj hauv kev los tsim ethanol: cov txheej txheem tshuaj lom neeg thiab cov txheej txheem lom neeg. Cov txheej txheem tshuaj lom neeg feem ntau yog hydration ntawm ethylene. Txoj kev lom neeg feem ntau yog fermentation ntawm cov suab thaj los ntawm cov kab mob.
Kev siv ethanol suav nrog cov ntawv thov kev lag luam, kev siv kho mob, ua roj, ua kuab tshuaj, thiab lwm yam. Ethanol kuj tseem siv tau los ua tshuaj tua kab mob vim tias nws tuaj yeem tua tau qee yam kab mob. Tsis tas li ntawd, ethanol yog ib qho tshuaj tiv thaiv rau methanol. Ethanol tuaj yeem siv ncaj qha los ua roj lossis ua roj ntxiv.
Dimethyl Ether yog dab tsi?
Dimethyl ether yog ib qho ether compound uas muaj cov tshuaj formula C2H6O. Lub npe IUPAC ntawm cov tshuaj no yog Methoxymethane. 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.
Daim duab 2: Skeletal Structure ntawm Dimethyl Ether
Qee Cov Lus Tseeb Txog Dimethyl Ether
- Chemical formula=C2H6O
- Molar mass=46.07 g/mol
- Melting point=−141 °C
- Boiling point=−24°C
- Lub cev lub cev=nyob rau hauv chav tsev kub, nws yog roj tsis muaj xim
- Suab=ether-like tsw
- dej solubility=tsis soluble hauv dej
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 tug zoo hnyav rau nonpolar compounds. Txawm li cas los xij, nws tsis yog tshuaj lom neeg thaum piv nrog lwm cov organic tebchaw.
Dab tsi yog qhov zoo sib xws ntawm Ethanol thiab Dimethyl Ether?
- Ethanol thiab Dimethyl Ether yog cov organic compounds.
- Ob Ethanol thiab Dimethyl Ether muaj tib lub molar pawg
- ob leeg yog cov kuab tshuaj zoo
- Ethanol thiab Dimethyl Ether yog ua los ntawm C, H thiab O atoms.
Qhov txawv ntawm Ethanol thiab Dimethyl Ether yog dab tsi?
Ethanol vs Dimethyl Ether |
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| Ethanol yog cawv muaj cov tshuaj formula C2H5OH. | Dimethyl ether yog ib qho ether compound uas muaj cov tshuaj formula C2H6O. |
| qeb | |
| Ethanol yog cawv. | Dimethyl ether yog ether. |
| muag Point | |
| Lub melting point ntawm ethanol yog -114.1 ° C. | Lub ntsiab lus ntawm dimethyl ether yog −141 ° C. |
| Boiling Point | |
| Boiling point ntawm ethanol yog 78.37 °C | kub taw tes ntawm dimethyl ether yog −24°C |
| Lub cev muaj zog | |
| Ethanol yog cov kua tsis muaj xim nyob rau hauv chav tsev kub nrog siab volatility. | Dimethyl ether yog cov roj tsis muaj xim ntawm chav tsev kub. |
| Ethanol muaj cov yam ntxwv ntawm cawv. | Dimethyl ether muaj ib yam ether-zoo li tsw. |
| Nyob ntawm Hydroxyl Group | |
| Ethanol muaj pawg hydroxyl (-OH). | Dimethyl ether tsis muaj pawg hydroxyl. |
Summary – Ethanol vs Dimethyl Ether
Ethanol thiab dimethyl ether yog cov organic tebchaw uas muaj tib lub molar pawg tab sis cov qauv tshuaj sib txawv. Qhov sib txawv tseem ceeb ntawm ethanol thiab dimethyl ether yog tias ethanol yog cov kua tsis muaj xim nyob rau hauv chav tsev kub thaum dimethyl ether yog cov roj tsis muaj xim ntawm chav tsev kub.
