Distillation of Alcoholic Beverages Distillation of Alcoholic Beverages Essay Example

melting point, but it is equally important for purification process. Vapour pressure is exerted by liquids as a result of molecules leaving the surface of the liquid to become vapour. The boiling point is the temperature at which the vapour pressure of the liquid equals external, atmospheric pressure acting on the surface of that liquid. As a rule of thumb, compounds with higher vapour pressures will boil at lower temperatures. In distillation, the vapour temperature which is in equilibrium with the boiling liquid is the temperature recorded rather than the distilling flask temperature.

Here are the types of distillation, Simple and fractional, and Steam Distillation. In simple distillation, the distillate would contain predominantly one liquid but would still be admixed with a second component. To further separate this resulting distillate, it should be redistilled. While fractional distillation is the separation of a mixture into its component parts, or fractions, such as in separating chemical compounds by their boiling point by heating them to a temperature at which several fractions of the compound will evaporate.

And, steam distillation is a distillation in which vaporization of the volatile constituents of a liquid mixture takes place at a lower temperature by the introduction of steam directly into the charge; steam used in this manner is known as open steam.

In the flammability test, all of the distillates were flammable. The maximum temperature reached is 88. 0 °C. At first, the temperature rises quickly, and as it progresses, the rise of temperature slows down. In test tube 1, the temperature is 77. 0 °C. In test tube 2, the temperature is 80. 0 °C. In test tube 3, the temperature is 83.

0 °C. In test tube 4, the temperature is 84. 0 °C. In test tube 5, the temperature is 86. 0 °C. In test tube 6, the temperature is 88. 0 °C. In test tube 7, the temperature is 88. 0 °C.

Calculations:

• % Alcohol = Volume flammable x 100
• Volume of the Sample
• % Alcohol = 3. 5mL x 100 15mL %
• Alcohol = 23. 34 %

This graph shows the result of the boiling temperature and flammability test for the Simple Distillation Set-up. In the flammability test, all of the distillates were flammable. The maximum temperature reached is 88. 0 °C. At first, the temperature rises quickly, and as it progresses, the rise of temperature slows down.

• In test tube 1, the temperature is 77. 0 °C.
• In test tube 2, the temperature is 80. 0 °C.
• In test tube 3, the temperature is 83. 0 °C.
• In test tube 4, the temperature is 84. °C.
• In test tube 5, the temperature is 86. 0 °C.
• In test tube 6, the temperature is 88. 0 °C.
• In test tube 7, the temperature is 88. 0 °C.

Experimental

A Quickfit distillation was set-upped (composed of 2 sets of clamps, iron stand; the rubber tubes were placed in the condenser; the Quickfit joints were greased). The test tubes were pen-marked at the 0. 5mL volume. 15mL of sample beverage (The Bar) and two pieces of boiling chips were placed in the distilling flask.

The flask was heated with a Bunsen flame that was constantly rotated around the flask. .5mL of the distillate were collected in separate numbered calibrated test tubes. Temperature was recorded when each fraction was collected. The set

up was cooled down and the remaining liquid from the distilling flask was poured into the graduated cylinder and the volume was recorded. The readings were plotted.

References

1. Garcia, C. (2005). Laboratory Experiments in Organic Chemistry. University of Santo Tomas, College of Science. Manila. Chang, R. , & Overby, J. (2011). General Chemistry 6th Edition. McGraw Hill. New York, USA.