PPT-EXPERIMENT 4 IDENTIFICATION OF ALDEHYDES

AND KETONES Both contain the carbonyl group CO which lends to their chief chemical and physical properties Examples of them include formaldehyde acetaldehyde propionaldehyde benzaldehyde. No two persons have exactly the same arrangement of ridge te ns an d th e te s f ny e in iv ua l re ma n ed hr ut if e Fi ge ri ts ff er an in ll bl e means of personal identification Other personal characteristics may change but fingerprints do no Aldehydes. The term Aldehyde come for the words . al. cohol . dehy. drogenation. . Preparation: Oxidation of primary alcohols according to the following equation:. Note: Oxidation can be considered as removal of hydrogens. In General. Fragrant odors. Basic building block of housing materials. Hormones. Digestion. Vision. 2. In General. Carbonyl group. C=O. Aldehydes. RCH=O. Formyl. Ketones. RC=OR’. 3. Nomenclature. Policy and Guidelines. Chief James McLaughlin, Jr. (Ret). Texas Police Chiefs Association. Phillip Lyons, Jr., J.D., Ph.D.. Sam Houston State University. June 5,2012. The Innocence Project reports out of 254 DNA exonerations 75% were misidentified by eye witness. . ,-Unsaturated Aldehydes and Ketones. 18-8. Conjugated unsaturated aldehydes and ketones are more stable than their unconjugated isomers.. Enones, or . ,-unsaturated carbonyl groups, are stabilized by resonance.. 17-1. The aldehyde function takes precedence over the ketone group in nomenclature.. Simpler aldehydes often retain their common names. These are constructed by dropping the –. ic. or –. oic. . 18-1. The pK. a. values of the . -hydrogens of aldehydes and ketones range from 16 to 21, comparable to those of alcohols (15-18).. Strong bases can remove  hydrogens leading to anions called . Before you can learn about aldehydes and ketones, you must first know something about the nomenclature of carboxylic acids since many of the names of aldehydes and ketones are derived from the names of the corresponding carboxylic acids.. The Civet Cat is the original source of civetone, a sweet and pungent ketone used as a fixative in perfumery. Aldehydes and ketones are found in many fragrant odors of many fruits, fine perfumes, hormones etc. some examples are listed below.. Lesson on the following:. The Carbonyl group. Nomenclature for . Aldehydes. and . Ketones. Properties of . Aldehydes. and . Ketones. . 1.5 . Aldehydes. . and . Ketones. Aldehydes and Ketones. April 4/5/6, 2017. Course Outline. April 4/5/6. Experiment 9: Identification of Unknowns. . Solubility, Functional Groups, Reports. Infra Red Spectroscopy (IR, FTIR).. Reading assignment. : Experiment 10.. Fourth Edition. Karen Timberlake. 14.1. Aldehydes and Ketones. Chapter 14. Aldehydes, Ketones, and Chiral Molecules. © 2013 Pearson Education, Inc.. Lectures. Aldehydes and Ketones. A . carbonyl group. Formation of an Aldehyde. Oxidation of Primary Alcohols. General equation:. Primary alcohol aldehyde. RCH. 2. CH=O. EXAMPLE:. 1-propanol. Formation of a Ketone. Oxidation of Secondary Alcohols. Organic compounds. Functional group identification. Many organic compounds contain an atom or group of atoms that substitute for hydrogen or carbon in a basic hydrocarbon.. The atom or group of atoms is commonly referred to as functional group..