Experiment 1: Synthesis and Recrystallization of Adipic Acid Aim The current experiment sought to prepare 1,6-hexanedioic acid (adipic acid) by catalytic oxidation of cyclohexene in the presence of a phase-transfer catalyst (Aliquat 336), using sodium tungstate as a catalyst and hydrogen peroxide as an oxidant. Introduction The carbon-carbon double bond of alkenes represents a site that has a high electron intensity. This site is susceptible to oxidation. Depending on the conditions or reagents used
April Goodson CHEM 242L-002 February 20, 2013 Oxidation of Cyclohexanone to Adipic Acid Abstract The cyclic ketone cyclohexanone was oxidized to adipic acid using the oxidizing agent nitric acid. The experiment yielded 0.2667 grams of adipic acid, giving a percent yield of 113.97%. Although the product was allowed to dry for one week, residual moisture was still present in the sample and a melting point could not be obtained. This error in the experiment either resulted from adding too much
INTRODUCTION 1. HISTORY AND GENERAL INFORMATION ON ADIPIC ACID 1. History on The Production Adipic acid is an important organic chemical raw material. In China, it is used as raw material in the production of Nylon 6/6 salt, polyurethane, plasticizers, high-grade lubricants and food additives. With the rapid growth of development, the application of adipic acid keeps expanding. The production of adipic acid is controlled in the hands of multinationals. An American chemical
material for the commercial production of glucose via enzymatic hydrolysis (de Wit et al. 1993). Glucose is the primary component for the manufacture of alkyl polyglucosides, D-glucitol, gluconic acid, and high fructose corn syrup; in fact, D-glucose can undergo a fermentation process to produce L-ascorbic acid, from D-glucitol, as well as polyesters, polyurethanes, and alkyd and melamine resins. Moreover, D-glucose can form pyranoid, furnaoid, and acyclic tautomers (Lichtenthaler and Peters 2004).
Fahrenheit. It has a sweet petrol like odour and is highly flammable. The hydrocarbon is derived from benzoic acid and is therefore named benzene. Michael Faraday an English scientist, famous for his work with electronic fields, first isolated and identified benzene in 1825 from the oily residue derived from the production of illuminating gas. In 1834 Eilhardt Mitscherlich heated benzoic acid with lime and produced benzene. In 1845 A von Hofmann isolated benzene from coal tar. Benzene dissolves only