Wintergreen Oil Synthesis
Experiment #1: Synthesis of Salicylic Acid From Wintergreen Oil
By: Asad Razzaq
TA:
Date: 18/01/2015
222/Lab Section 8
Introduction Salicylic acid, used in production of substances used worldwide such as commonly used analgesic drug aspirin(cite), can be obtained from natural resources such as wintergreen oil or can be synthesized. Through a series of chemical reactions with cheap raw materials beginning with beginning with methyl salicylate and, it is a cheaper and more efficient method of making salicylic acid from natural resource of benzene. The purpose of the experiment is to prepare salicylic acid methyl salicylate, and compare it to the one already made naturally from benzene to determine any differences …show more content…
Important process of isolation that is commonly used is to vacuum filter a solution that allows for the separation of insoluble substances present in a solution. The decision to choose vacuum filtration against another method such as gravity filtration is due to the suction pressure in vacuum filtration that creates faster and more effective suction [1]. Once separated, purifying a substance can occur by recrystallizing the solid substance by heating it in water to its boiling point, making it fully dissolved and soluble due to the added source of energy. Then reversing the conditions by cooling the solution, allows pure substance to form crystals at a higher temperature with other ‘like’ crystals that make the substance more pure, while the impurities remain dissolved in the solution till the solution is further …show more content…
John, W. Lehman. Operational Organic Chemistry: A Problem-Solving Approach to The Laboratory Course. 4thEdition. 2009. Pearson-Prantice Hall,Upper Saddle River,NJ.p. L9–L10.
2. Recrystallization. Chemwiki. UcDavis. Web. 2014 http://chemwiki.ucdavis.edu/Physical_Chemistry/Physical_Properties_of_Matter/Solutions_and_Mixtures/Case_Studies/RECRYSTALLIZATION 3. Fried, Bernard. Thin Layer Chromatography. 4th Edition. Marcel Dekker, Inc. New York, 2005.
By: Asad Razzaq
TA:
Date: 18/01/2015
222/Lab Section 8
Introduction Salicylic acid, used in production of substances used worldwide such as commonly used analgesic drug aspirin(cite), can be obtained from natural resources such as wintergreen oil or can be synthesized. Through a series of chemical reactions with cheap raw materials beginning with beginning with methyl salicylate and, it is a cheaper and more efficient method of making salicylic acid from natural resource of benzene. The purpose of the experiment is to prepare salicylic acid methyl salicylate, and compare it to the one already made naturally from benzene to determine any differences …show more content…
Important process of isolation that is commonly used is to vacuum filter a solution that allows for the separation of insoluble substances present in a solution. The decision to choose vacuum filtration against another method such as gravity filtration is due to the suction pressure in vacuum filtration that creates faster and more effective suction [1]. Once separated, purifying a substance can occur by recrystallizing the solid substance by heating it in water to its boiling point, making it fully dissolved and soluble due to the added source of energy. Then reversing the conditions by cooling the solution, allows pure substance to form crystals at a higher temperature with other ‘like’ crystals that make the substance more pure, while the impurities remain dissolved in the solution till the solution is further …show more content…
John, W. Lehman. Operational Organic Chemistry: A Problem-Solving Approach to The Laboratory Course. 4thEdition. 2009. Pearson-Prantice Hall,Upper Saddle River,NJ.p. L9–L10.
2. Recrystallization. Chemwiki. UcDavis. Web. 2014 http://chemwiki.ucdavis.edu/Physical_Chemistry/Physical_Properties_of_Matter/Solutions_and_Mixtures/Case_Studies/RECRYSTALLIZATION 3. Fried, Bernard. Thin Layer Chromatography. 4th Edition. Marcel Dekker, Inc. New York, 2005.