Carboxylic acid

saturated fatty acids and/or unsaturated fatty acids. The most common saturated fatty acids used in soap are, “lauric acid, myristic acid, palmitic acid and stearic acid” ( Michelle 2014). If a more effective clean is desired then, using a saturated fatty acid is the way to go because they get rid of oils better. Due to this, soaps made up of saturated fatty acids are less prefered for skin because it will take away the natural oils produced by your skin. These saturated fatty acids…

polycondensation of lactic acid is the modest reaction that forms lactide simultaneously by the decomposition processes and it is not used for the large production of PLA [19-22]. Back in the days, the direct polycondensation was assumed as the reaction that produces inadequate polymers with low molecular weight. But with the development of the condensation reaction, it can produce polymers with significantly high molecular weight [23-25]. Oligomer Polycondensation The lactic acid does the…

release tablet. UV spectrophotometric method was developed and validated to study drug release profile of Ketorolac Tromethamine and Phenylephrine Hydrochloride in immediate release tablet. Background: Ketorolac Tromethamine is a pyrrolizine carboxylic acid derivative structurally related to indomethacin. It is an anti inflammatory drug with analgesic and anti pyretic effect. Phenylephrine Hydrochloride is a sympathomimetic amine that acts predominantly…

purpose of this lab was to separate unknown compound 204, composed of an amine, a carboxylic acid, and a neutral component, into each of its three respective states. The unknown compound was separated using microscale separation of acidic, basic, and neutral components by liquid/liquid extraction. Liquid/liquid extraction is a very common method often used in work-ups and allows for isolation of neutral components using acid/base chemistry; this method is extremely helpful in separating…

solution, because it is the source of the Grignard reagent. Because the halide cannot be eliminated, the next best option is to minimize the amount of halide in the reaction. In this experiment, a small concentration of the halide is reacted with a high concentration of magnesium to ensure maximum contact between halides and magnesium. To do this, magnesium will be placed in the round bottom flask and then halides are slowly added. Another potential source of error is that Grignard reagents must…

Unknown 3 3805.79 0.0733 Unknown 4 3396.46 0.9280 Medium N-H stretch Amides, alcohols and amines 5 2987.43 0.2450 Medium C-H stretch Alkanes and acids 6 2946.27 0.2810 Medium C-H stretch Alkanes and acids 7 2912.38 0.2040 Medium C-H stretch Alkanes 8 2834.49 0.3170 Weak C-H stretch Aldehydes and acids 9 2524.07 0.0337 Medium O-H stretch Carboxylic acids 10 2226.40 0.0033 Weak C ≡C stretch Alkynes 11 2043.60 0.0059 Unknown 12 1785.35 0.0104 Unknown 13 1659.54 0.0303 Medium C =C stretch…

Aspirin. Aspirin is the common name but it can also be known as Acetyl Salicylic Acid. Aspirin came to be because the hard work of scientist who were trying to relieve pain and fight fever without the patient suffering deadly side effects. A breakthrough occurred when a chemist named Felix Hoffman knew that phenolic compounds are corrosive because of the free hydroxyl group located on the benzene ring of salicylic acid. He then masked the hydroxyl group by replacing the hydrogen with an acetyl…

The theoretical yield of acetylsalicylic acid in grams that should be obtained from the synthesis is 3.96 g. The closest experimental yield was obtained without using a catalyst for the reaction; with a yield of 3.67 g (93%) of crude acetylsalicylic acid and a yield of 3.39 g (86%) of recrystallized acetylsalicylic acid. These results are relatively accurate. Similar results were obtained for the experimental yield of the reaction catalysed by concentrated sodium hydroxide; with a yield of 3.38…

Aspirin is produced from the reaction of Salicylic Acid and Acetic Anhydride. Aspririn is a analgesic and antipyretic. The purpose of this experiment is to produce aspirin and analyzing it for yield. Twenty grams of salicylic acid, molecular weight 138.1g/mol, 5.0 mL of acetic anhydride, molecular weight 102.1g/mol and density 1.08g/mL, and 5 drops of concentrated sulfuric acid were mixed in a 125mL flask. The mixture was heated in a 70°C hot water bath then taken out to cool to room…

ASA by using thin layer chromatography and analysis of Recrystallized Acetylsalicylic Acid by Spectroscopy to compare these results with another experiment about creating an Aspirin from Salicylic Acid. In this experiment, 0.1241 gram of Recrystallized ASA was produced from 1.1754 gram of Crude ASA and the yield of reaction is 10.56%. This yield is lower than the yield by creating an Aspirin from Salicylic Acid because the crystallized product is purer because we did not add another chemical in.…