Acetic anhydride

Discussion: In this experiment we added salicylic acid to 2.0 ml acetic anhydride for the molecules to react to produce aspirin. The 85% concentrated phosphoric acid was added to act as an acid catalyst to lower the required activation energy for the reaction. We then allowed the reaction to stand for about 10 minutes to allow the phosphoric acid to spread through the solution. We than heated the solution to add energy to the system to obtain the activation energy needed for the reaction. After heating

of these properties.  To learn how to prepare soap.  To compare the properties of soap and synthetic detergents. II. Data and Observation A. Comparison of soaps and detergents 1. Hydrolysis Observation Reaction with blue litmus paper Acetic acid + Red Benzoic acid + Red Sodium Benzoate + Red (+)-miscible (-)-immiscible (red)-acidic (blue)-basic

Theoretically, cyclopentanol could be synthesized using a two-step process from cyclopentene, e.g.,the addition-esterification reaction of cyclopentene with acetic acid, the transesterification of cyclopentyl acetate and

of organic synthesis. The most common drug is acetylsalicylic acid, known commonly as Aspirin. C_7 H_6 O_3 (s)+C_4 H_6 O_3 (aq)→C_9 H_8 O_4 (s)+C_2 H_4 O_2 (aq) In this experiment, Aspirin, along with acetic acid, was a product of the chemical reaction between salicylic acid and acetic anhydride – as shown by the chemical formula above. The product, acetylsalicylic acid, shows three structural features: an aromatic ring, a carboxylic group, and an ester group (as shown by the diagram below)1:

acetylsalicylic acid, which is aspirin, investigate two of its chemical properties, and measure the purity of the synthesized aspirin. The aspirin was created in an esterification reaction between salicylic acid and acetic anhydride. Using the aspirin that was made from salicylic acid and acetic anhydride, it was tested to see if the salicylic acid in the aspirin acts as a phenolic alcohol or as a carboxylic acid by adding FeCl3 solution. Procedure A boiling-water bath was prepared by half filling a 600

Erin Chase Arellano CHEM 12A ABSTRACT Acetylsalicylic or most commonly known as Aspirin is made through a combination of salicylic acid and acetic anhydride. It is use to relieve mild to moderate pain such as muscle pain, headaches and common cold and reduce fever. The objective of this experiment was to synthesize aspirin from salicylic acid and acetic anhydride. The purity of aspirin was tested using the ferric chloride test and % yield was also calculated. Below drawing is the synthesis reaction

Abstract This report presents the synthesis of Aspirin (acetylsalicylic acid), as the product of the reaction of salicylic acid with ethanoic anhydride under acidic conditions. Aspirin was purified through recrystallisation by vacuum filtration, followed by desiccation of the Aspirin crystal over silica gel. The percentage yield was calculated as 44.89% and a sample of Aspirin was analysed using infra-red spectroscopy and compared to the spectrum of pure Aspirin, this served as an introduction to

β-D-Glucose Pentaacetate from its Original D-Glucose and it comparison with literature though Melting point, TLC, IR, 1H and 13C NMR Abstract: The synthesis of the product: β-D-glucose pentaacetate is done though the acetylation using acetic anhydride with D-glucose with the help of sodium acetate. The recrystallization of the product is done though a polar solvent like water. The Result of this experiment has a percentage yield of 61% and analytical methods that are to detect the products

and anhydride was used to drive the reaction to completion. In the synthesis of oil of wintergreen we reacted salicylic acid and methanol to produce methyl salicylate. This reaction is an example of a condensation reaction where the carboxylic acid and alcohol group combine to form an ester. In producing aspirin, we wanted to obtain the purest form, so we removed impurities such as unreacted salicylic acid and acetic acid. Acetic acid was removed by rinsing the sample in water because acetic acid

solvent, a water-jacketed column was used. + HEAT The product N-acetyl anthranilic acid was synthesized through the reaction of anthranilic acid with acetic anhydride, which was hydrolyzed leading to the formation of the white crystalline product. The reaction of anthranilic acid with acetic anhydride lead to acetylation of the amino group. Our percent yield