Andrade_Experiment4

Andrade_Experiment4 - Chem 262L Francisco Andrade...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chem 262L Francisco Andrade Experiment 4: Dehydration of 2-Methylcyclohexanol Purpose: The purpose of this experiment was to carry out an elimination reaction of 2- methylcyclohexanol in order to purify the product and analyze the product using gas chromatography. Balanced Chemical Equations: Procedure: To a 5-mL round-bottom flask, 3 mL of 2-methylcyclohexanol, 1 mL of 85% phosphoric acid, and one stir bar were added. The reaction was set up to reflux and heated at a “medium” setting for 30 minutes. After 30 minutes, the condenser that was set up was insulated with aluminum foil, and the resulting product was distilled. The vapor temperature was kept below 96 o C. Distillation was continued until 2-3 mL of liquid was collected. The top, organic layer was transferred using a disposable pipet into an Erlenmeyer flask, and dried using anhydrous magnesium sulfate. The settings for the gas chromatogram were checked: the injection temperature was to be at 170 o C in order to completely vaporize all volatile substances, and the column temperature was to be at 90 o C. The blue polarity button was also pushed in. The flow rate was adjusted to around 25mL/min, and a computer was connected to the gas chromatogram in order to record data. The elution position and timing for 1-methylcyclohexane was determined by injecting 1.0-2.0
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

Andrade_Experiment4 - Chem 262L Francisco Andrade...

This preview shows document pages 1 - 2. Sign up to view the full document.

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