Benzoic acid

Microwave (MW) assisted Esterification of Benzoic Acid (BA) offers the advantage of transformation of energy and heating throughout the volume efficiently in a shorter period and eliminates the use of excess solvent, during the course of reaction. The present study aims to assess the conversion and selectivity for the production of methyl benzoate compounds by esterification of benzoic acid using microwave irradiation. Effects of operating parameters such as reaction time, feed composition,…

[Chemical Engineering Lab Practice 4] EXTRACTION OF BENZOIC ACID Candidate’s Name: Raajeswari A/P Radahakrishnan Student ID: SCM-023562 Group Member’s Name: Angela A/P Gunasegaran Shubashinee A/P Murugan Lecturer/ Supervisor: Ms Nazlina & Dr Ong Chi Siang Date of Submission: 13 October 2015 1.0 ABSTRACT This experiment is about extraction of benzoic acid from kerosene by water droplets that was conducted on 6 October 2015 with few group of students. The main purpose of…

reagents were used? 2. What techniques were used to purify and identify the product of the reaction? 3. Describe acid-base extraction and how it was being used in this experiment? 4. Describe recrystallization and how it was being used in this experiment? 5. Describe mixed melting point and how it was being used in this experiment? 6. What was the identity of the unknown acid? 7. What yield and percent yield were obtained? 8. What percent recovery was obtained from recrystallization? 9…

Observations or reactions: Separation of the basic component: When 2ml of 3M HCl was added to the mixture of Benzoic acid, Ethyl 4-aminobenzoate, 9-Fluorenone, diethyl ether, two layers were created, an organic yellow top layer and a clear aqueous bottom layer. The clear layer (basic layer) was extracted and placed into a container where 6M NaOH was add to the solution. The addition of NaOH made the solution basic, and created white flakes in the solution. The white flakes were separated by…

The benzoin is oxidized with nitric acid to produce benzyl. When benzoin was reacted with nitric acid, an orange color appeared. When was heated the mixture a strong red color appeared in the reflux condenser, which is the visible liberation of nitrogen oxide gases. A total of 0.10 grams of purified benzil was produced from this reaction which contained a detected melting point of 82°C and a 34 % yield. This seemed to be approximately 10 degrees less than the ideal melting point of 94°C, which…

The purpose of this experiment was to prepare a benzocaine, by direct Fisher esterification of p-aminobenzoic acid with ethanol in the presence of sulfuric acid as catalyst. Equations Percent Yield= (mass product obtained)/(mass therotical ) X 100 Results Table 1: Percent yield of crude benzocaine, its melting point and comparison with literature value Melting Point Melting Point Range Percent Yield 82.9 °C – 84.5°C 1.6 59.3% Discussion The weight of the final product was 0.086 grams. The…

Component Via Extraction Objective: Separation of organic acid from a neutral compound using liquid/liquid extraction. Experimental: Similar to the “Thin Layer Chromatography” experiment, a TLC plate was ran with 2 ml of EtOAc and 8 mL of hexane in the jar. The Rf value was calculated using the formula located in the data for all the TLC plate. The mixed compound that was dotted on the TLC plate had 0.300 g of the impure benzoic acid and 10 mL of dichloromethane. A 50 mL flask was weighed…

product on it which would have been removed with the stick. It is less clear why the benzoic acid was overproduced. Some of the organic layer may have been drawn off with it, but the vacuum filtration should have left only the benzoic acid. There could have been an error in weighing the filter paper before the procedure. There also could have been contaminants in the basic extract, causing more than just the benzoic acid to be filtrated. There is also the chance that too much starting material…

Dichloromethane and Methanol were able to completely dissolve Benzoic acid. However Hexane was unable to completely disolve Benzoic acid. Dichloromethane was able to completely dissolve Benzoic acid , due to both molecules being nonpolar. Benzoic acid has a is made up of a carbon ring which is nonpolar and is easily dissolved by the nonpolar molecule dichloromethane. Methanol also dissolved Benzoic acid, due to dipole-dipole intermolecular forces and hydrogen bonding between both…

Starting out, there was a mixture of an unknown acid, base, and neutral component. Just like the process outlined in the introduction, a solvent would be added to the solution containing the acid, base, and neutral unknown mixture. This solvent must have specific characteristics regarding solubility such that it dissolves the substance desired to be extracted while not dissolving or dissolving in only small portions the other substance not wanted purified out. It should also be easy to separate…