The key difference between ethanol and dimethyl ether is that theethanol is a colorless liquid at room temperature which has high volatility whereas dimethyl ether is a colorless gas at room temperature.Further ethanol (common name is ethyl alcohol) is an alcohol while dimethyl ether is an ether.
酒精是由A组成的有机化合物羟group (-OH) as the functional group. An醚is also an organic compound, but it has twoalkylgroups attached to the same oxygen atom.
内容
1.Overview and Key Difference
2.什么是乙醇
3.什么是二甲基醚
4.乙醇和二甲醇之间的相似性
5.Side by Side Comparison – Ethanol vs Dimethyl Ether in Tabular Form
6.概括
什么是乙醇?
Ethanol is an alcohol having the chemical formulaC2H5哦。该化合物的通用名称是ethyl alcohol。The functional group of this compound is a hydroxyl group (-OH). Ethanol is highly flammable; thus, it is used as a fuel as well. Moreover, it is a highly volatile compound. However, at room temperature, it is a colorless liquid with a characteristic odor.
Figure 1: Chemical Structure of Ethanol
Some Chemical Facts about Ethanol
- Chemical formula = C2H6O
- Molar mass = 07 g/mol
- Melting point = -114.1 °C
- Boiling point = 78.37 °C
- Physical state = at room temperature, it exists as a colorless liquid
- Odour = characteristic alcoholic odor
- Water solubility = miscible with water
乙醇与水混乱，因为它可以与水分子形成氢键（–OH基团可以与H形成氢键2o分子）。因此，使用的溶液具有较高的粘度。此外，当乙醇与水混合时，波动率会降低。
Ethanol is a polar compound since it has a terminal hydroxyl group. It makes ethanol a good solvent for polar compounds. There are two pathways to produce ethanol: chemical processes and biological processes. The most common chemical process is the hydration ofethylene。The most common biological pathway is the fermentation of sugars by microorganisms.
乙醇的用途包括工业应用，医疗应用，作为燃料，作为溶剂等。乙醇也可以用作防腐剂，因为它可以杀死一些微生物。此外，乙醇是甲醇的解毒剂。乙醇可直接用作燃料或燃料添加剂。
什么是二甲基醚?
Dimethyl ether is an ether compound having the chemical formulaC2H6O。The IUPAC name of this compound is甲氧烷烷。This compound is well known for its solvent properties. It has two methyl groups bonded via an oxygen atom; the two methyl groups are bonded to the same oxygen atom.
Figure 2: Skeletal Structure of Dimethyl Ether
Some Chemical Facts about Dimethyl Ether
- Chemical formula = C2H6O
- Molar mass = 46.07 g/mol
- 熔点= -141°C
- 沸点= -24°C
- Physical state = at room temperature, it is a colorless gas
- 气味= ether-like odor
- Water solubility = not soluble in water
二甲基醚是一种非极性化合物。这意味着二甲基醚没有极性。这是因为其对称的分子结构。因此，它是非极性化合物的良好溶剂。但是，与其他有机化合物相比，它在化学上没有反应性。
乙醇和二甲醇之间有什么相似之处？
- Ethanol and Dimethyl Ether are organic compounds.
- 乙醇和二甲醇醚都具有相同的摩尔质量
- Both are good solvents
- Ethanol and Dimethyl Ether are made of C, H and O atoms.
What is the Difference Between Ethanol and Dimethyl Ether?
乙醇与二甲基醚 |
|
| 乙醇是具有化学式C的酒精2H5哦。 | 二甲基醚是具有化学式C的醚化合物2H6O. |
| 类别 | |
| Ethanol is an alcohol. | Dimethyl ether is an ether. |
| Melting Point | |
| The melting point of ethanol is -114.1 °C. | The melting point of dimethyl ether is −141 °C. |
| Boiling Point | |
| Boiling point of ethanol is 78.37 °C | 二甲基醚的沸点为-24°C |
| Physical State | |
| 乙醇是在室温下具有高波动性的无色液体。 | 二甲基醚是在室温下的无色气体。 |
| 气味 | |
| Ethanol has a characteristic alcoholic odor. | Dimethyl ether has a typical ether-like odor. |
| Presence of Hydroxyl Group | |
| Ethanol has a hydroxyl group (-OH). | Dimethyl ether has no hydroxyl groups. |
总结- - -乙醇和二甲醚
Ethanol and dimethyl ether are organic compounds having the same molar mass but different chemical structures. The key difference between ethanol and dimethyl ether is that ethanol is a colorless liquid at room temperature whereas dimethyl ether is a colorless gas at room temperature.
Reference:
1. “Ethanol.” Wikipedia, Wikimedia Foundation, 18 Apr. 2018,Available here。
2. “Ether.” National Center for Biotechnology Information. PubChem Compound Database, U.S. National Library of Medicine,Available here。
3. “Diethyl Ether.” Diethyl Ether – New World Encyclopedia,Available here。
Image Courtesy:
1. “1094992” (CC0) viaPixabay
2. “Dimethyl ether Structural Formulae” By Jü – Own work (Public Domain) viaCommons Wikimedia
发表评论