Laboratory #6 Qualitative Tests for Carbonyls: Aldehydes vs. Ketones Introduction Various chemical tests identifying ketones and aldehydes are used in this experiment in order to identify an unknown carbonyl compound. The tests used are: 2‚4-dinitrophenylhydrazone test‚ Tollen’s Test‚ Benedict’s Test‚ Chromic Acid Test‚ aka Bordwell-Wellman Test‚ Schiff’s Test‚ and Iodoform Test. These classification tests provide results based on color change or formation of precipitation‚ which is then used
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step involves the production of KA Oil (a mixture of cyclohexanone‚ the ketone and cyclohexanol‚ the alcohol component) and the second stage is its subsequent oxidation to adipic acid with an excess of strong nitric acid in the presence of copper and vanadium catalysts. Only 3-8 % conversion of cyclohexane is obtained in the first step. Recycling of the large amount of cyclohexane unreacted and separation of cyclohexanol and cyclohexanone from cyclohexane present major problems. In the second step the
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125mL Erlenmeyer flask it contained 20.0 mL of deionized water and 20mL of concentrated sulfuric acid was added carefully with some swirling in between. The diluted acid was cooled with an ice water bath to 20-25ºC. to the cooled sulfuric acid cyclohexanol was added carefully and slowly with swirling as well. The reaction mixture cooled 65% sulfuric acid was transferred to the 100mL round-bottomed flask through a glass funnel‚ three boiling stones were added to the mixture and the distillation started
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peak at about 3300 in the IR corresponds to the O—H group in the product. The peaks to the right of aro0und 3000 are C—H related‚ those about 1599 are C—H bends‚ and the peaks at 1000-1350 are C—O related. The most plausible product seems to be cyclohexanol with a molecular formula of C6H12O. 2. Describe the stereochemical relationship between each pair of isomers. (a) Same
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all of the following parts a) You should state what experiment was performed‚ and show any necessary reaction schemes. The reaction schemes should include molecular weights and any other important physical data for the reagents and products. Ex. Cyclohexanol was oxidized to cyclohexanone using sodium dichromate in the presence of sulfuric acid. * Note: you can download a free version of a structure editor from ACD labs‚ the PC version is called chemsketch‚ the Mac version is called marvinsketch
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Katie Smith April 11‚ 2013 Competitive Nucleophiles Introduction The purpose of this experiment was to compare the nucleophilicities of chloride and bromide ions toward the n-butyl and t-pentyl alcohols. We were able to analyze this by using refractometry to measure the amounts of alkyl chloride and alkyl bromide in each reaction. Experiment Scheme (Procedure A) To begin the experiment‚ we assembled a reflux apparatus in the fume hood with a 100 mL round bottom flask and a condenser
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out an order that if there is any influences and which of these temperatures make the biggest influence. Objects Experiment A: There will be six test tubes are set up‚ which contains one control variable and five different types of substrates: Cyclohexanol‚ (1‚ 4) - Cyclohexandiol‚ (1‚ 2) - Cyclohexanediol‚ Catechol‚ Resourcinol. The darkness of these five test tubes will be the depended variables. Experiment B: There will be eleven test tubes are set up‚ which contains one control variable and
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Organic Chemistry - Introduction 1 2812 Basic definitions for organic chemistry Scope Organic chemistry is a vast subject so it is easier to split it into small sections for study. This is usually done by studying compounds which behave in a similar way because they have a particular atom‚ or group of atoms‚ (FUNCTIONAL GROUP) in their structure. Catenation The ability to form bonds between atoms of the same element. Carbon catenates to form chains and rings‚ with single‚ double
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Synthesis and Structure of Alcohols Alcohols can be considered organic analogues of water. H O H R O H Alcohols are usually classified as primary‚ secondary and tertiary. H R H OH H primary R R OH R R OH OH R secondary tertiary phenol Alcohols with the hydroxyl bound directly to an aromatic (benzene) ring are called phenols. Nomenclature of Alcohols (Normally any compound’s name which ends in –ol is an alcohol of some sort) IUPAC rules that:
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Trichilia roka gum was purified and analyzed and subjected to physicochemical‚ spectroscopic and rheological analysis. Results obtained from physicochemical analysis indicated that the gum is mildly acidic‚ ionic and exhibited properties that are closely related to most useful food and pharmaceutical gums. The gum has rich content of fibre‚ major elemental ions and other useful minerals. GCMS and XRF studies on the gum also revealed that the gum has several industrially useful minerals. The viscosity
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