EXP22 - 1 Fijany Layla Fijany Chem 12A T/TH 5-10pm...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Fijany Layla Fijany Chem 12A T/TH 5-10pm 11/8/2011 Experiment 22: 4-Methylcyclohexene Purpose : To experimentally obtain high yield of 4-methylcyclohexene with acid dehydration reactions to form an alkene. Introduction: Alcohol dehydration is an acid-catalyzed reaction performed by strong, concentrated mineral acids such as sulfuric acid and phosphoric acids. The acid protonates the alcoholic hydroxyl group, permitting it to dissociate as water. Loss of a proton from the intermediate (elimination) brings about an alkene. The equilibrium that is associated with this reaction will be shifted in favor of the product by distilling it from the reaction mixture as it is formed. By continuously removing the products, a high yield of 4-methylcyclohexene can be obtained. A small amount of phosphoric acid can be removed by washing the distillate mixture with a saturated sodium chloride solution. Hypothesis: 4-methylcyclohexanol along with phosphoric acid and sulfuric acid will produce an alkene bond. Set Up:
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 List of Reagents FW (g/mol) BP (˚C) MP (˚C) Density (g/cm 3 ) Other (hazards, uses, etc) Sodium Chloride (aq) (NaCl aq ): 58.44 1413 801 2.17 - aka salt, used to preserve foods Anhydrous sodium sulfate (Na 2 SO
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/26/2012 for the course OCHEM 12A taught by Professor Alston during the Fall '11 term at Saddleback.

Page1 / 3

EXP22 - 1 Fijany Layla Fijany Chem 12A T/TH 5-10pm...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online