How to get ethylene?
Ethylene is a gas. It dissolves in water - 25.6ml in 100ml. And in ethane - 359 ml in 100 ml. Therefore, it can be easily obtained from ethane (ethyl alcohol) by dehydration. Dehydrogenation is the splitting off of hydrogen from the molecule of an organic compound. In this case - from the ethane molecule (C2H5OH).
Two Ways How to Get Ethylene
- from ethane thermally, in the presence of Al2ABOUT3. But in this way, ethylene is produced in industry.
- from ethane under the influence of sulfuric acid (H2SO4), the so-called dehydrating agent (a substance that binds water).
We will consider the second method.
How to get ethylene from ethane
The preparation occurs as a result of a simple chemical reaction:
C2H5OH -> CH2= CH2+ H2O (in the presence of concentrated H2SO4).
This method is also available in a domestic setting. You need to put some amount of alcohol in the container, add gently H2SO4.Since ethylene is slightly lighter than air, it must be collected in an open, upside-down vessel, fixing it vertically. It will accumulate gas as a result of the reaction.
During the reaction, you should be extremely careful, since the acid can burn your eyes or get on the skin.
When the reaction is over, do not turn the top container over, close it. All. Gas you got.