acid portion of adjacent salicylic acid molecules. Further‚ more molecules can bind to the remaining free substituents on these molecules to create a macromolecule‚ or polymer. The polymer is formed as a by-product. Acetylsalicylic acid will react with sodium bicarbonate to form a water-soluble sodium salt‚ whereas the polymer remains insoluble. This difference can be used to purify the aspirin product. The most likely impurity in the final product is salicylic acid‚ which can be either
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THEORETICAL STUDY ON MICROWAVE ASSISTED BONDING OF POLYMER BASED MICROFLUIDIC DEVICES By KASI BALAMURUGAN MANI A thesis submitted in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN MECHANICAL ENGINEERING WASHINGTON STATE UNIVERSITY School of Mechanical and Materials Engineering May 2013 To the Faculty of Washington State University: The members of the Committee appointed to examine the thesis of KASI BALAMURUGAN MANI‚ find it satisfactory and recommend that it
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CHEMICAL INDUSTRY The chemical industry comprises the companies that produce industrial chemicals. It is central to modern world economy‚ converting raw material (oil‚ natural gas‚ air‚ water‚ metals‚ and minerals) into more than 70‚000 different products. The chemical industry is a key contributor to the world economy. It is a knowledge-based industry with significant investments in R&D. The industry supplies to virtually all sectors of the economy. In terms of consumption‚ the chemical industry
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Paper as food packaging material Paper is a quite versatile material‚ utilized in flexible‚ semi-rigid‚ and rigid packaging. It is made into a wide variety of single- and multi-wall bags. It can also be made into a thicker stronger structure which is made into cartons and boxes that provide mechanical protection for many foods. The paperboard can be converted to an even stronger material called corrugated paperboard that is converted into boxes used for logistics. Most types of paper provide a partial
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PTU/BOS/Ch/101/30-12-2004/ BATCH 2004 Punjab Technical University‚ Jalandhar B.Tech. Chemical Engg. Scheme of Syllabi ( 3rd Semester ) Sr. no 1 2 3 4 5 6 7 8 9 Course Code Ch-201 Ch-203 Ch-205 Ch-207 Ch-209 Ch-211 Ch-213 Ch-215 Ch-217 Course Title Mechanical Operations Numerical Methods in Chemical Engineering Organic & Biotechnology Chemical Process Calculations Fluid Flow Strength of Materials Strength of Materials Lab. Fluid Flow Lab. Numerical Methods in Chem. Engg. Lab. L 3 3
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In order to release the nitrogen into soil‚ this polymer coating will be very effective. This product will send nitrogen for defined time and they use this product in manner so that‚ crops will intake particular amount of nitrogen at each stage of its growth. In more detail‚ this product is mainly designed
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CHAPTER 1 INTRODUCTION Background of the Study For the past years‚ human society has struggled to come up with solutions for what to do with all the wastes in the environment. It is a dilemma that has grown only more exasperating. Plastics are one of the major dilemmas that we have. Although here in the Philippines‚ some places already banned the usage of plastic bags‚ we still noticed other things that are made of plastics that we just can’t take away from our system. Plastic is the most convenient
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HISTORY OF TEXTILE No one knows exact beginning of spinning and weaving of textiles. However‚ it is thought that weaving originated earlier than spinning. Primitive people may have observed the interlaced grass and twigs in the nests of birds or they have seen rushes naturally interlacing as they grew and discovered formation of cloth‚ baskets‚ nets and huts etc. Spinning developed later when people may have thought to improve raw material. People started to use fibers found in nature and hand
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Innovation in Policing In the world of policing‚ innovation does not just come in the form of new gadgets or computer technology; it comes in the form of ideas as to how police can be more effective in their local communities. Though technology such as bulletproof vests and body cameras are changing the way police in the United States preform their jobs‚ these technologies are just a small piece of a larger puzzle. With growing anti-police sentiment in the United States it is imperative that law
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Introduction: Household items made of various kinds of plastic. Plastic is the general common term for a wide range of synthetic or semisynthetic organic amorphous solid materials used in the manufacture of industrial products. Plastics are typically polymers of high molecular mass‚ and may contain other substances to improve performance and/or reduce costs. Monomers of Plastic are either natural or synthetic organic compounds. The word is derived from the Greek πλαστικός (plastikos) meaning fit for
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