Elimination Reactions of Alcohols Flashcards
Alcohols can also undergo …………to form alkenes
dehydration
Alcohol vapour is passed ………………powder or pieces of porous pot
hot (600 C) catalyst of aluminium oxide (Al2O3
What else apart from aluminium oxide can be used as a catalyst
Excess hot, concentrated sulfuric acid or phosphoric acid is used as a catalyst
Phosphoric(V) acid is used an alternative dehydrating agent
This is an example of an elimination reaction
Elimination reactions involve a small molecule being formed as a by-product
The water molecule is formed from the -OH group of the alcohol and the H+ from the acid catalyst
The neighbouring hydrogen is then lost as a H+ ion, which regenerates the acid catalyst
Alkenes produced by this method can be used to produce
addition polymers without using monomers derived from crude oil
