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
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Cyclohexanol Cycle. The cyclohexanol was first converted to cyclohexene and water by simple distillation (product: 6.5395g‚ 79.75% recovery). The cyclohexene then underwent a bromination reaction by addition of concentrated HBr and a 30% H2O2 solution‚ followed by an extraction of the aqueous phase. This produced trans-1‚2-dibromocyclohexane (product: 12.8886g‚ 67.34% recovery). The trans-1‚2-dibromocyclohexane was reduced by zinc metal to cyclohexene. The reaction was conducted in water‚ first allowing
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Institute of Technology; 2 Professor‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapua Institute of Technology [pic] ABSTRACT The purpose of this experiment is to prepare cyclohexene form cyclohexanol‚ and know the properties of alkene. The first part of this experiment is preparation of cyclohexene. Simple distillation set-up is assembled. (See Figure 1). Exactly 6.0mL of cyclohexanol is weighed in a quick-fit one-necked pear shaped flask. 1.50mL of 85% H3PO4 is measured using the
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Cyclohexanol can be produce through several methods‚ which include the oxidation of cyclohexane‚ the hydration of cyclohexene‚ or the hydrogenation of phenol (Zhang‚ et al‚ 2002). Problem with oxidation of cyclohexene is poor selectivity‚ extremely large recycles and explosion hazards. (Suresh‚ Sridhar‚ Potter‚ 1988). The purpose of this experiment was to synthesis cyclohexanol by hydration of cyclohexene using concentrated sulphuric acid as an acidic catalyst. In hydration reaction‚ C=C B bond is replaced
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Properties and Reactions of Hydrocarbons Abstract Introduction Hydrocarbons are organic materials that contain only carbon and hydrogen atoms‚ these molecules can be saturated or unsaturated and acyclic‚ cyclic‚ or aromatic. In this experiment we used a variety of methods to examine the physical and chemical properties of hydrocarbons. The first experiment we tested a variety of solvents to see if they dissolved our alkane (Decalin). One would expect that non-polar solvents will dissolve
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Purpose: a) To identify saturated and unsaturated hydrocarbons using properties and reactions. b) Study substitution and addition reactions. Equipments test tube rack (1) test tube holder (2) 100 mL beaker medium test tube (6) Materials cyclohexene toluene n-hexane conc. H2SO4 Br2/CCl4 or Br2/CH2Cl2 0.50 % KMnO4 10% NaOH 10% Na2CO3 unknowns hydrocarbons Discussion Hydrocarbons
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Procedure: The addition of 4.0 mL cyclohexanol‚ 1.0 mL of 85% phosphoric acid‚ and one boiling chip‚ were all added to a 10 mL round bottom flask that would be attached to the end of an assembled simple distillation set up. A sand bath was placed atop a hot plate‚ and the simple distillation mechanism was lowered into the sand bath with the bottom most piece (the 10 mL round bottom flask) submerged about half way. The distillation process was completed after a sufficient amount of liquid distillate
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oxidation of cyclohexene S.M. Mahajani‚ M.M. Sharma‚ T. Sridhar* Department of Chemical Engineering‚ Monash University‚ Clayton‚ Victoria 3168‚ Australia Received 13 October 1998; received in revised form 22 December 1998; accepted 23 December 1998 Abstract The oxidation products of cyclohexene "nd several applications as intermediates for the manufacture of useful chemicals like cyclohexanol‚ cyclohexenol/cyclohexenone‚ cyclohexadiene‚ etc. The uncatalysed oxidation of cyclohexene with molecular
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24120389 Lab# 2 Lab instructors Alecia Palmer and Donald Burke Course Instructor Maureen Wilson Lab Title Preparation of cyclohexene from cyclohexanol Aim Preparation of an Alkene by dehydration of an alcohol in the presence of a catalyst. Calculate the percentage recovery of products. Test for purity and identification of products. Abstract Cyclohexene and cyclohexanol are both colourless aromatic compounds. The major difference between the two is the presence of the hydroxyl group
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unknown samples. Results : Part A : Combustion Compounds Observations Hexane There was orange flame and burned mildly during the burning process. No soots and smoke were produced. C6H14 + 19/2 O2 6CO2 + 7H2O Cyclohexene Orange flame burned vigorously. A small amount of black soot and smoke were produced during the burning process. C6H10 + 17/2 O2 6CO2 + 5H2O Toluene Orange flame burned very vigorously. A large amount of black soot and smoke
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