Difference Between Butane and Butene

Thekey difference在丁烷和丁内之间是丁烷在碳原子之间没有双键或三键，而丁烯在碳原子之间包含双键。

丁烷和丁烯是每个分子具有四个碳原子的有机化合物。但是它们在化学结构（例如化学结合和许多氢原子）上有差异。因此，它们也具有不同的化学和物理特性。

内容

1.Overview and Key Difference
2.What is Butane
3.What is Butene
4.Side by Side Comparison – Butane vs Butene in Tabular Form
5.概括

什么是丁烷？

丁烷是具有化学式C的有机化合物₄H₁₀。这是一个nalkane; thus, it is a saturated compound. Therefore, there are no double or triple bonds between the atoms of this molecule. It exists as a gas at room temperature and pressure. This compound has four carbon atoms and 10 hydrogen atoms. These atoms arrange in either a linear structure or a branched structure. We call the linear structure as “n-butane” and the branched structure as “isobutene”。但是，根据IUPAC命名系统，丁烷一词是指线性形式。异丁烯具有一个连接到三碳主链的甲基分支。

气体的摩尔质量是58.12克/摩尔。这是一个colorless gas. It has gasoline-like odor. The melting and the boiling points are −134 °C and 1 °C respectively. In addition to that, this gas is a highly flammable and easily liquefied gas. When liquefied, it quickly vaporizes at room temperature. When there is enough oxygen, this gas burns, giving carbon dioxide and water vapor. But if the amount of oxygen is limited, it forms carbon soot and carbon monoxide as well; due to incomplete combustion.

When considering the uses of butane, we can use it for gasoline blending, as a fuel gas, as a fragrance extraction solvent, as feedstock for the manufacture of ethylene, as an ingredient for the production of synthetic rubber, etc.

What is Butene?

Butene is an organic compound having the chemical formula C₄H₈。“Butylene” is a synonym for the same compound. This compound has four carbon atoms and 8 hydrogen atoms. There is a double bond between two carbon atoms. Therefore, it is an unsaturated compound. It falls under the category ofalkenes。它是室温和压力下的无色气体。我们可以发现这种气体是原油中的次要组成部分。因此，我们可以通过炼油厂中的催化裂纹获得这种化合物。

Due to the presence of the double bond, this compound has isomers. There are four major isomers; they are, But-1-ene, (2Z)-but-2-ene, (2E)-but-2-ene and 2-methylprop-1-ene (isobutylene). All these isomers exist as gases. We can liquefy them by two methods; we can lower the temperature or increase the pressure. These gases have distinct odors. Moreover, they are highly flammable. The double bond makes these compounds more reactive than the alkanes with a similar number of carbon atoms. When considering the applications of this compound, we can use them as monomers in the production of polymers, in the production of synthetic rubber, in the production of HDPE and LLDPE, etc.

What is the Difference Between Butane and Butene?

丁烷是具有化学式C的有机化合物₄H₁₀丁烯是具有化学式C的有机化合物₄H₈。Both these are organic compounds containing four carbon atoms and different numbers of hydrogen atoms. Chiefly, the main difference between butane and butene is in their chemical structures. That is, a double bond is present in the butene, but is absent in butane. Furthermore, this makes butene more reactive while giving inertness to butane. Moreover, butene has four different isomers while butane has two isomers only.

The below infographic presents more details on the difference between butane and butenein tabular form.

概括– Butane vs Butene

Butane and butene are organic compounds that exist as gases at room temperature and pressure. The key difference between butane and butene is that the butane has no double or triple bonds between carbon atoms whereas the butene contains a double bond between carbon atoms.

Reference:

1. “Butane.” Wikipedia, Wikimedia Foundation, 22 Aug. 2018.Available here
2. “Butene.” Wikipedia, Wikimedia Foundation, 22 Aug. 2018.Available here

Image Courtesy:

1.”Butan Lewis” By NEUROtiker ⇌ – Own work, (Public Domain) viaCommons Wikimedia
2.”Cis-2-Buten” By NEUROtiker – Own work,(Public Domain) viaCommons Wikimedia