A THEORITICAL STUDY ON REMOVAL AND RECOVERY OF VOLATILE ORGANIC COMPOUNDS FROM AQUEOUS SOLUTIONS BY PERVAPORATION JAGADEESH KUMAR. Y *a‚ NAGA KUMAR. Vb. *a III/IV B.Tech chemical engineering‚ R.V.R & J.C College of engineering‚ GUNTUR. E-mail: abhi.chemico@gmail.com. bIII/IV B.Tech chemical engineering‚ R.V.R & J.C College of engineering‚ GUNTUR. E-mail: naga.vootla@gmail.com. ABSTRACT Strategies for
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the absorbance of the liquids with the different solvents. Solvent Results from colorimeter 0.001 Acid (Hydrochloric) 0.358 Ethanol 0.132 Hot water 0.984 Cold water-distilled water (control) 0.057 CONLUSION: The results show that hot water gave the highest average absorbance reading from the colorimeter‚ followed by hydrochloric acid‚ ethanol and cold water‚ in descending order of absorbance. The absorbance of the solvent that was hot water affected the most the permeability
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Experiment 1: Bromination of Acetanilide1 Precautions: Ethanol is flammable Sodium hypochlorite is an oxidizing agent and releases toxic fumes (handle in fume hood) Acetic acid is corrosive‚ harmful if inhaled‚ flammable and can cause burns (handle in fume hood) Gloves are recommended to avoid chemical contact with skin Reaction Scheme: Conversion of acetanilide to p-bromoacetanilide Procedure: To a 125 mL Erlenmeyer flask containing a mixture of 95% ethanol (6 mL) and acetic acid (5 mL)‚ dissolve acetanilide
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TABLE OF CONTENTS 6.1 The Nature of Energy 6.2 Enthalpy and Calorimetry 6.3 Hess’s Law 6.4 Standard Enthalpies of FormaCon 6.5 Present Sources of Energy 6.6 New Energy Sources 30 STANDARD ENTHALPIES OF FORMATION Cgraphite(s) Cdiamond(s) ΔH for this process cannot be obtained by
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membrane by forming water soluble complexes with them 4. How does the DNA in the cell lysate become visible? It becomes visible when ethanol is added. Since DNA is insoluble in ethanol‚ it cannot be incorporated into the liquids. Ethanol hits the cell lysate which cause the DNA to precipitate out of the solution‚ forming a cloud of stringy fibers at where ethanol and cell lysate meet. 5. Why can you see the extracted DNA with the naked eye? I can see the extracted DNA with the
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Universiti Teknologi PETRONAS Bandar Seri Iskandar 31750 Tronoh Perak Darul Ridzuan ABSTRACT The objective of this project is to optimize the preparation of modified Calcium Oxide (CaO) to capture CO2 by carbonation through hydration of ethanol/water. The carbonation reaction is the basis for CO2 capture systems. However CaO as regenerable CO2 sorbents in industrial processes is limited by the rapid decay of the carbonation conversion with the number of cycle carbonation/ calcination. Therefore
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substances were heated in a 100ml Erlenmeyer flask‚ filtered using filter paper and a funnel with a neck‚ beakers‚ vacuum flask for additional filtration‚ and an electronic scale for weighing the crystals. The solvent used for both parts was 95% Ethanol that was also dripped on the crystals for purification. Ten tablets of aspirin were used in part one. Two grams of impure benzil were used in part two. Procedure: Lab 3 involved an intricate lab with many steps. We began by obtaining 75 grams
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certificate acknwledgement index Abstract Introduction Aim Hypothesis Procedure Observation Data analysis Result Conclusions Solutions Reference OBJECTIVE The Objective of this project is to study some of the common food adulterants present in different food stuffs. Adulteration in food is normally present in its most crude form; prohibited substances are either added or partly or wholly substituted. Normally the contamination/adulteration
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denaturing the proteins and allowing beetroot pigment to secrete form the cell. 7. The ethanol solutions that were used were 11%‚ 25% and 50% ethanol. The beetroot cell was almost immediately affected by the 50% alcohol but settled as time past. On the other hand the pigment intensity increased through time with the 25% alcohol solution. The ethanol affects the beetroot cell membrane because the ethanol is a very
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inverted 5 times to lyse the cells. Five drops of protease and salt solution were added to the sample. The tube was capped and inverted 5 times. The sample was incubated in a water bath at 50°C for 10 minutes. Following incubation‚ 10 mL of cold ethanol was slowly added while holding the tube at a 45° angle. The tube was placed upright at room temperature for five minutes‚ after which the sample was inverted 5 times. The DNA extraction protocol and all materials and reagents were provided by Bio-Rad(2)
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