Simple Distillation Lab Report
Experiment 1: Simple Distillation and Boiling Points- Separation of Liquids
February 24, 2014
Analysis
In this experiment, the distillation of three groups of two miscible liquids was performed. First, Ethanol and 2-Propanol were distilled. The boiling points of ethanol and 2-propanol had a difference of 5°C. The percent recovery for both ethanol and 2-propanol were both 0%. The percent recovery of the intermediate was 96%. The percent efficiency calculated of ethanol and 2-propanol was 0% efficient.
Next, Cyclohexane and Toluene were distilled. The boiling points of cyclohexane and toluene had a difference of 35°C. Cyclohexane had a percent recovery of 10%. Toluene had a percent recovery of 17%. The percent efficiency …show more content…
The three separate liquid mixtures each had different ranges of boiling points of the liquids in the mixture. The percent efficiencies of the three separate mixtures were compared to determine which provided the most separation of liquids. Each mixture was heated in a flask and the vapor would begin to rise as the liquid would boil, then flow to the condenser and drop to the bottom of the other flask. The drops were monitored and the drop rate was determined by how many drops fell each minute. The mixture that had the higher percent efficiency had the largest difference in boiling points between the two liquids. The mixture with the least percent efficiency had the smallest difference in the boiling points of the two liquids The degree of separation is determined by the difference of boiling points of the two liquids. Distillation of two liquids having a difference in boiling points of 100°C or more separate more efficiently. This experiment showed a simple distillation apparatus could provide good results of separation for two miscible liquids that had a greater difference in boiling
February 24, 2014
Analysis
In this experiment, the distillation of three groups of two miscible liquids was performed. First, Ethanol and 2-Propanol were distilled. The boiling points of ethanol and 2-propanol had a difference of 5°C. The percent recovery for both ethanol and 2-propanol were both 0%. The percent recovery of the intermediate was 96%. The percent efficiency calculated of ethanol and 2-propanol was 0% efficient.
Next, Cyclohexane and Toluene were distilled. The boiling points of cyclohexane and toluene had a difference of 35°C. Cyclohexane had a percent recovery of 10%. Toluene had a percent recovery of 17%. The percent efficiency …show more content…
The three separate liquid mixtures each had different ranges of boiling points of the liquids in the mixture. The percent efficiencies of the three separate mixtures were compared to determine which provided the most separation of liquids. Each mixture was heated in a flask and the vapor would begin to rise as the liquid would boil, then flow to the condenser and drop to the bottom of the other flask. The drops were monitored and the drop rate was determined by how many drops fell each minute. The mixture that had the higher percent efficiency had the largest difference in boiling points between the two liquids. The mixture with the least percent efficiency had the smallest difference in the boiling points of the two liquids The degree of separation is determined by the difference of boiling points of the two liquids. Distillation of two liquids having a difference in boiling points of 100°C or more separate more efficiently. This experiment showed a simple distillation apparatus could provide good results of separation for two miscible liquids that had a greater difference in boiling