of groundwater‚ but also surface water and air. Research shows Earthworks extraction of hydrocarbons is associated with much higher air pollution than burning them later. For pollutants emitted VOCs include aromatic hydrocarbons such as benzene‚ toluene‚ hydrogen sulfide‚ nitrogen oxides‚ PAHs (polycyclic aromatic hydrocarbons)‚ Sulphur dioxide. The problem of environmental pollution worsens method of disposal of spent fracturing fluid. It is stored on site drilling and often evaporated into the
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Nitration of Methyl Benzoate Abstract: This procedure demonstrates the nitration of methyl benzoate to prepare methyl m-nitrobenzoate. Methyl benzoate was treated with concentrated Nitric and Sulfuric acid to yield methyl m-nitrobenzoate. The product was then isolated and recrystallized using methanol. This reaction is an example of an electrophilic aromatic substitution reaction‚ in which the nitro group replaces a proton of the aromatic ring. Following recrystallization‚ melting point and infrared
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boiling point versus the volume of distillate in the simple distillation experiments‚ what can you conclude about the purity of your product? Product not very pure. No distinct line to know when one begins and one ends. Distillation of cyclohexane and toluene crossed over into the other’s range. Would need to perform more distillations to better purify the solvents. 5. What is the effect on the boiling point of a solution (e.g. water) produced by a soluble non-volatile substance (e.g. sodium chloride)
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DELA CRUZ‚ CYNTHIA GRACE C. 2008-13749 FS 125 March 10‚ 2012 ANTIMICROBIAL AGENTS 1. Introduction Food preservation has long been practiced since the olden times with processes such as heating ‚ drying‚ fermentation and refrigeration. In spite of this‚ physical methods are not enough to eliminate all microorganisms found in foods. Therefore‚ antimicrobial agents are needed to destroy these foodborne pathogens‚ so that the food will have a longer shelf-life. As technology progresses‚ improvements
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Groups/Pages: 1. PHDp: https://www.facebook.com/groups/PHD.Platform1/ 2. CRHPG (HUMLog): https://www.facebook.com/groups/CRPHC.HUMLOG/ 3. Pharma Tips: https://www.facebook.com/groups/pharmatips/ 4. BANGLORE/PUNE/HYDRBD JOB SEEKERS:https://www.facebook.com/groups/244121658956541/ 5. CDM & SAS: https://www.facebook.com/groups/clinicaldatamanagement/ 6. Indian Clinical Research & Health Care Professionals:https://www.facebook.com/groups/icrhcp/ 7. Pharma-Trend Setter: https://www.facebook.com/groups/pharmarockz/
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dalimss EV.S PROJECT Disease caused by the Environmental exposure MADE BY- [Type the author name] [Year] Environmental Diseases In epidemiology‚ environmental disease is disease caused by environmental factors that are not transmitted genetically or by infection. Apart from the true monogenic genetic disorders‚ environmental diseases may determine the development of disease in those genetically predisposed to a particular condition. Stress‚ physical and mental abuse‚ diet‚ exposure
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163 CHAPTER 13 HYDROCARBON Hydrocarbons are composed of Carbon and hydrogen. The important fuels like Petrol‚ kerosene‚ coal gas‚ CNG‚ LPG etc. are all hydrocarbons or their mixture. Sources: Petroleum and natural gas are the major sources of aliphatic hydrocarbon while coal is an important source of aromatic hydrocarbons. The oil trapped inside the rocks is known as petroleum. PETRA – ROCK‚ OLEUM – OIL. The oil in the petroleum field is covered with a gaseous mixture known as natural
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Chapter 1: Introduction Chapter 1: Introduction Ionic liquids (ILs) can be viewed as a new and remarkable class of solvent. They are also a type of materials that have a long and useful history‚ where the earliest material that meets the current definition of IL was observed in the mid-19th century when a separate liquid phase called the “red oil” was observed in Friedel-Crafts reaction [17]. Over the following years‚ there has been a rapid growing of interest in ILs due to the realization
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[Executive summary] Nike Inc was involved in several controversies during the mid 1990’s which were revived in early 2000’s. The allegations have had the potential to adversely affect the brand image of the company. The company was criticized for operating factories in poor working conditions in low cost countries such as China‚ Vietnam‚ Mexico and Indonesia. Before these allegations were voiced‚ the following theories were applicable; a view that was noted by (Shaw‚ W‚ Barry‚ V & Sansbury‚ G 2009)
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Iron-Copper co doped bismuth vanadate‚ has led to the formation of the BIFECUVOX solid solution in the composition range 0.05≤x≤0.20 were synthesized by standard solid state reactions. Fe and Cu substitution effects on the phase stabilityand electrical performance in the parent bismuth vanadate and was investigated by combining results obtained fromPowder X-ray diffraction (PXRD)‚ Differential Thermal analysis (DTA)‚ Thermogravimetric analysis (TGA)‚Scanning Electron Microscopy(SEM) and AC impedance
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