Perfume is made from about 78% to 95% is made from ethyl alcohol and essential oils. Perfume ingredient can cause health or environmental problems when used or abused in large quantities either it is natural or synthetic. In some perfumes it can cause unwanted reaction to some people‚ especially people with asthma ‚Sometimes if the perfume is used in large amount it may cause allergic reactions to the skin. Like the substance ethyl acetate and acetone that is present in most perfumes they are
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Drugs screen using Thin Layer Chromatography of basic illicit drugs Abstract The majority of evidence submitted to crime labs comes from drug-related crimes. Often‚ this evidence includes unidentified powders that may be illegal drugs. In order to prosecute individuals for possession of illegal substances‚ it is necessary for forensic scientists to positively identify any suspected drugs submitted to the laboratory. In addition‚ forensic toxicologists must determine the identity
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equipment: 1 5-cm x 8-cm TLC plate‚ 2 capillary micropipettes‚ TLC tank and lid‚ ruler‚ UV lamp Extraction Equipment: spatula‚ 2 small test tubes‚ Pasteur pipet and bulb Chemicals: caffeine‚ ethanol‚ dichloromethane‚ TLC solvent (5% acetic acid in ethyl acetate) Meltemp apparatus and capillary tube Three of the following samples for analysis: diet cola‚ diet lemon-lime soda‚ analgesic pill‚ instant coffee‚ instant iced tea Purpose In this experiment‚ thin-layer chromatography (TLC)‚ a standard technique
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What is the Difference between Flammable and Combustible Liquids? Put simply‚ flammable and combustible liquids are liquids that can burn. The real difference lies within their flash point range‚ or lowest temperature at which vapours of the material will ignite when supplied with an ignition source. Flammable and combustible liquids are utilised in most workplaces‚ from manufacturing to retail and service entities. To ensure the safety of property‚ people‚ and the environment‚ both flammable
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Optimization of extraction of lycopene for production of lyco-cookies Short running title : PRODUCTION OF LYCO-COOKIES Keywords : antioxidant‚ carotenoids‚ n-hexane‚ cookies‚ supplement Meena Vankudre*‚ Vina D. L. Putra and Vaibhav Zamare Department of Biotechnology‚ Sinhgad College of Science‚ Affiliated to University of Pune‚ Ambegaon (BK)‚ Pune 411041‚ India *Author for correspondence e-mail : meenahv@gmail.com Abstract In today’s world‚ people tend to be exposed to unhealthy
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Project 17: Soaps and Detergents Stephanie Futrell Kelsey Duncan Tom Bunch Antwyone Clayborne Chemistry 1020 Laboratory‚ Section 007 Instructor: Fan Yang September 23‚ 2014 Our signatures indicate that this document represents our own work. Excluding shared data‚ the information‚ thoughts and ideas are my own‚ except as indicated in the references. Goals There was another oil spill that covered local birds in oil. The environmental group stepped in to help make their own soap
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I. Product Background A. Introduction In this highly luxurious extravagant world‚ food and other beverages has always been one of the things which maintain the mainstream of life. Aside from being one of the basics for survival‚ gatherings are also made perfect by food preparation and stress is now often associated with food. This activities show that food intake nowadays is far different from the conventional times. Furthermore‚ this lavish lifestyle most of the people have results in an
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CH3COOH Assay of Aspirin capsules Aqueous Alkalimetry Residual titration 0.1N NaOH Phenolphthalein TS C6H4OCOCH3COOH + NaOH C6H4OCOCH3COONa+ H2O Assay of Metacholine Chloride Non Aqueous Acidimetry Blank titration Perchloric acid Mercuric acetate TS Crystal violet TS 2 Cl- + Hg (OAC)2 + 2HClO4 2 ClO4- + 2HOAc + 2HgCl2 Assay of Phenytoin Non Aqueous alkalimetry Blank titration Sodium methoxide Saturated sol’n of Azo violet in Benzene H C6H5 N--C=O
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components. Part2 :to learn the separation technique by using TLC plate in separating a mixture of compound by using spinach leaf. Apparatus:UV lamp‚capillary ‚250 ML beaker Materials:aspirin‚acetaminophen‚caffeine‚unknown A‚unknown B‚TLC plates‚ethyl acetate‚Hexane‚acetic acid‚iodine Introduction: Procedure: A.spotting of the TLC plates 1.A TLC plates is obtained from my instructor. 2.the plate is set down on a clean‚dry surface then a line Is drawn lightly across the plate about 1cm from
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Atrazine (1-chloro-3-ethylamino-5-isopropylamino-2‚ 4‚ 6-triazine‚ CAS: 1912-24-9) was purchased from Dr. Ehrenstorfer GmbH (97.7%‚ Germany). Ethyl acetate (99.8%‚ ANPEL Scientific Instrument (Shanghai) Co.‚ Ltd.) was used as solvent for standard solutions. Acetonitrile used as HPLC eluent was purchased from ANPEL Scientific Instrument (Shanghai) Co.‚ Ltd.‚ KH2PO4·12H2O‚ K2HPO4·2H2O‚ dichloromethane and other chemical reagents used in cultivated media were purchased from Sinopharm Chemical Reagent
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