S11079900 Assignment 1 St131
EXPERIMENT 4
LAB REPORT
TITLE: PREPARATION OF CYCLOHEXENE FROM CYCLOHEXANOL
Paula Kata Partners: Ilai Bula S11099863 Eremasi Matin
Abstract
This work looks at preparation of cyclohexene from cyclohexanol which involves as part of an elimination reaction. The required reagent of concentrated sulfuric acid as one of the catalyst and water which allow the mixing known as washing the cyclohexene with water. The formation of product cyclohexene which is reweight and adding of bromine the last reagent for confirming that is alkene known as bromine test which leads to colour changes. Yet this experiment reflects some important discussion and conclusion for the formation of cyclohexene.
INTRODUCTION
One of the common ways of preparing an alkene is through the dehydration of an alcohol. Cyclohexanol, the reagent of this experiment, is used in the production of nylon, paints, plastics, detergents, textiles and pesticides whereas Cyclohexene itself is used in manufacturing of adipic acid, hexahydrobenzoic acid, maleic acid, cyclohexanol and cyclohexeneoxide.
In this experiment cyclohexanol is dehydrated to prepare cyclohexene while using sulfuric acid as a catalyst. The mixture of cyclohexanol with sulfuric acid is heated in a flask equipped with a fractionating column, forming water. Further heating promotes the distillation of water and cyclohexene by the principle of stem distillation. A bromine test can be later done to ensure that the end product is an alkene.
HYPOTHESIS The amount of cyclohexene forms will be greater than the amount of cyclohexanol prepared.
PROCEDURE 20g of cyclohexanol was placed in a 100cm3 round bottom flask together with 10cm3 sulfuric acid (9M) and allowed to mix through swirling the flask. Two boiling chips were added to the flask for fractional distillation while the receiving flask is placed in a cold ice bowl.
LAB REPORT
TITLE: PREPARATION OF CYCLOHEXENE FROM CYCLOHEXANOL
Paula Kata Partners: Ilai Bula S11099863 Eremasi Matin
Abstract
This work looks at preparation of cyclohexene from cyclohexanol which involves as part of an elimination reaction. The required reagent of concentrated sulfuric acid as one of the catalyst and water which allow the mixing known as washing the cyclohexene with water. The formation of product cyclohexene which is reweight and adding of bromine the last reagent for confirming that is alkene known as bromine test which leads to colour changes. Yet this experiment reflects some important discussion and conclusion for the formation of cyclohexene.
INTRODUCTION
One of the common ways of preparing an alkene is through the dehydration of an alcohol. Cyclohexanol, the reagent of this experiment, is used in the production of nylon, paints, plastics, detergents, textiles and pesticides whereas Cyclohexene itself is used in manufacturing of adipic acid, hexahydrobenzoic acid, maleic acid, cyclohexanol and cyclohexeneoxide.
In this experiment cyclohexanol is dehydrated to prepare cyclohexene while using sulfuric acid as a catalyst. The mixture of cyclohexanol with sulfuric acid is heated in a flask equipped with a fractionating column, forming water. Further heating promotes the distillation of water and cyclohexene by the principle of stem distillation. A bromine test can be later done to ensure that the end product is an alkene.
HYPOTHESIS The amount of cyclohexene forms will be greater than the amount of cyclohexanol prepared.
PROCEDURE 20g of cyclohexanol was placed in a 100cm3 round bottom flask together with 10cm3 sulfuric acid (9M) and allowed to mix through swirling the flask. Two boiling chips were added to the flask for fractional distillation while the receiving flask is placed in a cold ice bowl.