Traditional way of synthesizing sensitive rhodamine starts with rhodamine B‚ amino compound‚ and some alkali additive in the presence of weak base. However‚ for RH-PY‚ the stearic hindrance of pyrene slows the reactivity‚ and the reaction does not go to completion. Therefore‚ the reaction procedure was modified as follows. First‚ HATU and DIPEA were used to activate the carboxyl group of rhodamine B‚ then the activated rhodamine B was reacted with 1-aminopyrene. By introducing this method‚ the reaction
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PREPARATION OF DETERGENTS CONTENTS Introduction 1. Classification of synthetic detergents * Anionic Detergents * Neutral or non-ionic detergents * Cationic Detergents * Bile Salts - Intestinal Natural Detergents * Amphoteric Detergents * Amphoterics 2. Key Concepts 3. Raw Materials 4. The Manufacturing Process * Introduction * End Products * The Blender Process * The Agglomeration Process * The Slurry Method * Liquid Detergent * Quality
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CHEMISTRY 101 FINAL EXAM SECTIONS 572-580 Dr. Joy Heising FORM 4N December 7‚ 2001 Directions: 1. Fill out your scantron sheet. a. Do not forget to include your SIGNATURE and ID number. b. Dept = CHEM‚ Course No. = 101 c. If you want your scores posted‚ mark A under the option column 2. Use a #1 or #2 pencil for marking the answer sheets. circles completely. 3. DO NOT write on the envelope. 4. Read each question carefully‚ then choose the best answer for each question. There is no penalty
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Test Booklet Code - NO.: ABC 2216302 This Booklet contains 20 pages. Do not open this Test Booklet until you are asked to do so. Impoutant Instructions : 1. 2. The Answer Sheet is inside this Test Booklet. When you are directed to open the Test Booklet‚ take out the Answer Sheet and fill in the particulars on side-1 and side-2 carefully with blue/ black ball point pen only. The test is of 3 hours duration and Test Booklet contains 180 questions. Each question carries 4 marks
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Exam 1 Study Guide 1) What is biology? the scientific study of life 2) Which of the following is not a property of life? A) Populations of organisms are unable to change over time. B) Living things exhibit complex but ordered organization. C) Organisms respond to environmental stimuli. D) Organisms take in energy and use it to perform all of life’s activities. E) Organisms reproduce their own kind. 3) What are the two main processes that ecosystems depend upon? nutrient
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BATAC JUNIOR COLLEGE PROJECT IN SCIENCE (SCIENCE INVESTIGATORY PROJECT) ALCOLOGNE RESEARCHERS: LLOYD ALDRIN GALIMBA PRINCESS ANN RABANAL MYKA ANGELICA PITPIT AREEYA KRISTEL SOLMERIN JEZREEL VALDEZ BING RONDOLOS NANCY CORPUZ INIGO DEL MUNDO RESEARCH ADVISER: MRS. LEILANIE A. BARANGAN ACKNOWLEDGEMENT We researchers wish to give our sincerest thanks to our Almighty God for his guidance and wisdom‚ by guiding us to the right decision. Also by helping us formulate this research.
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question paper consists of 10 printed pages. SAJC 2010 P3 – Answer any four questions. 1 (a) Hydrolysis of a lipid (containing multiple ester linkages) produced the following fatty acids. Structure I CH3(CH2)4CH=CHCH2CH=CH(CH2)7COOH Structure II CH3CH2CH=CHCH2CH=CHCH2CH=CH(CH2)7COOH (i) In an experiment‚ hot acidified potassium manganate(VII) was used to oxidise Structure I. Write the structural formulae of all organic products formed during the oxidation. (ii) What is meant by
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Edexel IGCSE Chemistry Revision Notes IGCSE Chemistry Triple Award Revision Guide Topic Introduction to chemistry Atomic Structure Structure and Bonding – Ionic Bonding Structure and Bonding – Covalent and Metallic Bonding Organic Chemistry - Alkanes Organic Chemistry – Alkenes / Addition Polymerisation Organic Chemistry – Alcohols / Condensation Polymerisation Calculations Periodic Table Reactivity Series and Metal Extraction Electrolysis Energetics Acids‚ Bases‚ Salts and Neutralisation
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Abstract An experiment is conducted to prepare soap and thus‚ to compare the properties of the prepared soap and synthetic detergents which are precipitation‚ emulsification and cleaning abilities. It can be concluded that soap has the properties if emulsifying oil whereas detergent has not. The abilities of forming precipitates can be seen clearly in soap solution whereas detergent forms no precipitates at all. The experiment is completed and successfully conducted. Introduction
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UNIVERSITY OF THE GAMBIA LECTURE NOTES COURSE: PRINCIPLES OF CHEMISTRY II (ORGANIC CHEMISTRY) CODE: CHM 161 2ND SEMESTER SESSION: 2012/2013 LECTURER: ANTHONY F. ADJIVON UNIT 1 INTRODUCTION Organic chemistry started as the chemistry of life‚ when that was thought to be different from the chemistry in the laboratory. Then it became the chemistry of carbon compounds‚ especially those found in coal. Now it is both. It is the chemistry of the compounds of carbon along with other elements
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