CHAPTER I INTRODUCTION 1.1 HISTORY: Ethylene Glycol (1‚ 2 – ethanediol)‚ HOCH2CH2OH usually called glycol is the simplest Diol. Diethylene glycol and Triethylene glycol are Oligomers of Mono ethylene glycol. Ethylene glycol was first prepared by Wurtz in 1859; treatment of 1‚2 dibromoethane with silver acetate yielding ethylene glycol diacetate via saponification with potassium hydroxide and in
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1. (a)Correct the following statements. (i) The melting points of crystalline and amorphous solids are not definite. The melting point of an amorphous solid is not definite. OR The melting point of a crystalline solid is definite. P Ps X solute . Ps P Ps The equation for relative lowering of vapour pressure when solute remains normal is X solute P (iii)The degree of ionization decreases with dilution. The degree of ionisation increases with dilution. (iv) Tertiary butyl halide
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Determination of Ethyl alcohol content Determination of Residue on evaporation Determination of Total acidity (as tartaric acid) Determination of Volatile acids (as acetic acid) Determination of Esters Determination of Higher alcohols Determination of Aldehydes Determination of Furfural Determination of Copper Determination of Methyl alcohol Determination of Sulphur dioxide References D R S.No. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 0 2012 ALCOHOLIC BEVERAGES 1
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SSN COLLEGE OF ENGINEERING DEPARTMENT OF CHEMICAL ENGINEERING V Semester – CH 2307 TECHNICAL ANALYSIS LAB -2010 INDEX SHEET CYCLE ONE Date of Condn. Date of Subn. Sign 1 Estimation of COD of the given sample of water. 2 Estimation of Manganese in the given pyrolusite ore. 3 Estimation of Magnesium by EDTA method. 4 Estimation of purity of drug using pH meter. 5 Estimation of Ammonia in ammonium salts. 6 Polarimetric estimation of sugar
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Wine is of great importance in our society today‚ and has been so for thousands of years. Grapes have been cultivated for wine production in the Near East since 4000BC‚ and in Egypt since 2500BC. They were spread from the Black Sea to Spain by the Greek Empire‚into Germany by the Romans and to the New World by Columbus. Wine has had religious significance as both an offering and a sacrament since Biblical times‚ and this has helped its development. Today an enormous variety of wines are available
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Experiment 4: Isolation of Essential Oils from Eugenol Background: Anyone who has walked through a forest or who enjoys the variety of fragrances that flowers have to offer knows that many plants and trees have their own distinctively pleasant odors. These odors are due to the volatile essential oils‚ many of which have been prized commodities since ancient times. If a list of commercially important essential oils was compiled the list would exceed 200 essential oils. Thyme‚ garlic‚ peppermint
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Individual Discussion Spectroscopy Dry Lab Lab Section M5 - Group 6 January 24‚ 2015 Discussion In this laboratory assignment‚ the spectroscopy data and molecular formula were given for 3 unknowns. An effort was made to conclusively identify these unknown samples using only the spectroscopy data‚ specifically 1H-NMR‚ 13C-NMR‚ and IR spectroscopy. Although mass spectrometry was given for the samples as well‚ its use was suggested only for confirmation‚ not identification‚ of the unknowns
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Microbiology Module 02 Homework Assignment Use the information presented in this module along with additional outside research to answer the questions: 1) Compare and contrast prokaryotic and eukaryotic. a) Prokaryotes and eukaryotes are two types of cells that are very different but share some certain properties such as methods of reproduction‚ protein synthesis‚ an organized metabolism‚ response to stimuli‚ and plasma membranes. One significant difference is that prokaryotes are without a cell
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Matioli‚ S. R. 2009. Alcohol dehydrogenase activities and ethanol tolerance in Anastrepha (diptera‚ tephritidae) fruit-fly species and their hybrids. Genetics and Molecular Biology 32: 177-185. Chai‚ Y.‚ Oh‚ D.‚ Chung‚ E. K.‚ et. al. 2005. Alchohol and aldehyde dehydrogenase polymorphisms in men with type I and type II alcoholism. Am J Psychiatry 162: 1003-1005. Heberlein‚ U.‚ Wolf‚ F. W.‚ Rothenfluh‚ A.‚ et. al. 2004. Molecular genetic analysis of ethanol intoxication in Drosophila melanogaster. Integrative
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AIR POLLUTION The major pollution caused by factories or industrials’ activities is air pollution. According to the Engineers’ Joint Council “Air Pollution and Its Control”‚ air pollution means the presence in the outdoor atmosphere of one or more contaminants‚ such as dust‚ fumes‚ gas‚ mist‚ odour‚ smoke or vapour in quantities of characteristics and of duration‚ such as to be injurious to human‚ plant or animal life or to property or which unreasonably interfaces with the comfortable enjoyment
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