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Acetic anhydride Essay Topics & Paper Examples

Synthesis of Acetylsalicylic Acid

Acetylsalicylic Acid (Aspirin) Synthesis Telow, AJV Sumicad, CJ, Tavanlar, EMMT, Chem 40.1, Institute of Chemistry, University of the Philippines Los BaƱos I. Introduction Organic synthesis is the process where a desired organic compound is constructed or prepared from commercially available materials. The objective of organic synthesis is to design the simplest synthetic routes to a molecule. Aspirin, also known as acetylsalicylic acid is as salicylate drug often used as analgesic to relieve minor aches and pains, as an antipyretic to reduce fever, and as an anti-inflammatory medication. The history of aspirin and its medical use can be traced way back in the secong millenium BCE. Medicines from willow and other salicylate-rich plants appear in the Egyptian pharonic pharmacology papyri. During…

Recrystallization of Acetanilide Using Water as Solvent

Abstract Recrystallization is a technique used to purify organic solids. This method involves dissolving of a solute in a solvent and inciting the solute to produce a precipitate from a solution. In this experiment, acetic anhydride was added to the mixture of 2mL aniline and 20mL of distilled water. The mixture was cooled in an ice bath and filtered through filter paper resulting to the crude acetanilide. The pure acetanilide was then produced by the filtered solution of crude acetanilide and recrystallizing solvent. Choosing of the recrystallizing solvent was done by placing a small amount of pure acetanilide in three test tubes, each containing: water, 95% ethanol and hexane. The final weight produced by the pure acetanilide is 1.1g contrary…