CHAPTER I Problem and its Background Introduction: This study uses Mangosteen (Garcinia mangostana) peeling. A peeling of Mangosteen is thick and contains extract that is the main component of this research. Compare to other fruit’s extract‚ Mangosteen peeling has the strongest because it’s extract sticks on hands when peeling this fruit. Varnish is a transparent‚ hard‚ protective finish or film primarily used in wood finishing but also for other materials. Varnish finishes are usually
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INTERNATIONALE PHARMACEUTICA SCIENCIA | Jan-March 2011 | Vol. 1 | Issue 1 | Available online http://www.ipharmsciencia.com ©2011 IPS REVIEW ARTICLE Phytochemical screening and Extraction: A Review ABSTRACT Plants are a source of large amount of drugs comprising to different groups such as antispasmodics‚ emetics‚ anti-cancer‚ antimicrobials etc. A large number of the plants are claimed to possess the antibiotic properties in the traditional system and are also used extensively by the tribal people
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EXPERIMENT 5 SEPARATION OF A MIXTURE INTO ITS COMPONENTS BY FRACTIONAL CRYSTALLIZATION Introduction: Fractional crystallization is one of the experimental techniques used to separate or purify mixture. Fractional crystallization makes use of the differences of solubility to separate the components of a mixture. Goals: Applying fractional crystallization to separate a mixture of salicylic acid and copper sulfate pentahydrate into its components. Calculate the percent of salicylic
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ETHERS Classification of Ethers: Symmetrical ethers – two groups attached to O are identical Ex. CH3CH2OCH2CH3 – diethyl ether Unsymmetrical ethers – two groups attached to O are not identical Ex. CH3CH2OCH3 – ethyl methyl ether Physical Properties of Ethers: Ethers have much lower boiling points compared to alcohols of comparable MWs. BPs of ethers increases with increasing MW. BPs of isomeric ethers increase with increasing alkyl chain length. BPs of ethers are about the
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Tessa Landauer Chemistry 0340 Qualitative Analysis Shaopeng Zhang January 26‚ 2015 I submit this laboratory report as an original document. I assert that all ideas and discussion of data contained herein is my own work unless otherwise referenced. Tessa Landauer Abstract The goal of the experiment was to isolate and purify the unknown D liquid and solid by using its acidic and basic characteristics in a chemically active extraction then to identify the unknowns by analyzing the physical properties
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Introduction: The Grignard reagents are alkyl magnesium halides‚ R-Mg-X were first introduced in 1900. These reagents are usually prepared by reacting one atom with one molecule or by other means magnesium and alkyl halide in the presence of dry alcohol free ether.
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for reproduction or display. Organic Compounds that Contain Oxygen‚ Halogen‚ or Sulfur Four families of compounds that contain a C atom singly bonded to O‚ S‚ or X (F‚ Cl‚ Br‚ or I) are: 1. Alcohols‚ which contain an OH (hydroxyl) group 2. Ethers‚ which have two alkyl groups bonded to an O atom 2 Organic Compounds that Contain Oxygen‚ Halogen‚ or Sulfur 3. Alkyl halides‚ which contain a halogen atom X (X = F‚ Cl‚ Br‚ or I) 4. Thiols‚ which contain a SH (sulfhydryl) group 3
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Anesthetic ether is the actually diethyl ether CH3CH2OCH2CH3. It has been used as an anesthetic in medical surgery for over 150 years‚ though the hypnotic effects of ether was already discovered 500 years ago. The historical development of ether anesthesia is very dramatic and interesting. Ether anesthesia: The historical development Ether was discovered in 1275 by Spanish chemist Raymundus Lullius‚ and was named ¡§sweet vitriol." In 1540‚ a German scientist Valerius Cordus described the synthesis
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Chapter 18 Ethers & Epoxides; Thiols and Sulfides Assigned Reading from McMurry: Read Sections 18.1 through 18.9; not responsible for “Focus on … Epoxy Resins & Adhesives‚ pp. 697-698). Recommended Problems from McMurry: 18.1a-e;18.18.2;18.3a-d; 18.4; 18.5a-d; 18.6a-b; 18.7a-b; 18.8; 18.9; 18.10; 18.11; 18.12a‚b; 18.13a‚b; 18.14a-c; 18.16a-f; 18.17; 18.18; 18.19a-c; 18.20; 18.21; 18.22; 18.23a-e; 18.24a-I; 18.25a-f; 18.26a-d; 18.27; 18.28; 18.29ad; 18.30a-e; 18.31; 18.32; 18.33; 18.34; 18
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Part 1. Hydrocarbon Nomenclature From International Union of Pure and Applied Chemistry (IUPAC) General Form of IUPAC Nomenclature [branching substituent(s)] Root [Suffix] Rules: 1. Identify the longest continuous chain of carbon atoms. This chain determines the parent name (root) of the alkane. The parent suffix for alkanes is‚ not surprisingly‚ -ane. For chains of equal length‚ pick the one with the most substituents. (Note: I number all possibilities going from left to right
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