1. mix 2.5 Ml cyclohexanone, 7.5g of KMnO4, 65 ml H2o in a roundbottom flask. Use steam bath and heat to 30 degree C. 2. Add 1 mlof 3M NaOH solution, stirring with glass rod. When the temperaturereach 45 degree C. slow the oxidation process by ice-cooling, andkeep the temperature at 45 degree C for 30 mins. 3. Then heat thepicture on heating mantle, adjust to 70V, wi reflux to complete theoxidation (55 degree C) 4. Make a spot test by withdrawing reactionmixture on the top pf the stirring rod and touching it to a filterpaper. KMnO4 if present, will show purple ring around the spot. 5.Keep heating and make the spot test, unit there is no KMnO4present. 6. Separate the solid and liquid mixture by suctionfiltration, rinse the brown precipitate well with water. 7. Add aboiling chip and evaporate the filtration to a volume of 17 ml.(while evaporating my cup tipped over and all of my productspilled, I only had about 3ml left.) 8. Acidify the hot solutionwith concentrated HCl to pH 1-2, add 5 ml acid in excess, and letthe solution stand to crystallize. 9. Collect the crystals withsuction filtration, rinse the solid with water. Turn on vacuum forfew minutes to dry the solid completely. 10. measure the madd ofthe solid. and determine the melting point.
Calculate the theoretical yield of adipic acid.
What is the limiting reagent in this reaction? Why do you thinkthis reagent rather than the other made limiting?
Why does acidification of the concentrated reaction mixturecause precipitation of adipic acid?
Why does the initially purple solution of KMnO4 change color asthe oxidation progresses?
