1999 Adipic Acid (98/99-3) Currently operating commercial production processes for adipic acid depend on the production or purchase of KA oil (a mixture of cyclohexanone‚ the ketone or K component‚ and cyclohexanol‚ the alcohol or A component)‚ or of pure cyclohexanol‚ and its subsequent oxidation in solution to adipic acid using an excess of strong nitric acid. This report deals with KA oil/cyclohexanol production by various routes‚ followed by the common step of nitric acid oxidation. KA
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Compare and Contrast ‘Neutral Tones’ by Thomas Hardy and ‘Absence’ by Elizabeth Jennings. In both poems Thomas Hardy and Elizabeth Jennings they have lost a person they were close to. There are some similarities in their feeling but there responses are different. Neither poets can forget the experience and are reminiscing on the situation. They are both going back to the place where they were with the people they loved. However in ‘Absence’ she has actually gone to the place they were together
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structures and properties of amino acids know the groups of amino acid What are amino acids? Amino acids are molecules that when combined with each other proteins. Amino acids contain a central tetrahedral carbon atom (α-carbon) amine group‚ carboxyl group‚ R-side chain The R-side chain determines the different amino acids There are 20 common amino acids Amino acids can join via peptide bonds Several amino acids occur only rarely in proteins Some amino acids are not found in proteins 3D
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Chromatographic Separation of Sodium Fluorescein and Methylene Blue In this two-part lab the students will: • Learn the techniques associated with thin layer and column chromatography. • Determine the effects of the stationary phase in separating a mixture by chromatography. • Determine the effects of the mobile phase in separating a mixture by chromatography. • Conduct a separation using column chromatography. In the first week‚ the students will determine the best solvent system for
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What is a neutral curriculum and can teachers truly leave their beliefs at the door of their classrooms upon entering? To tell the truth‚ this is a question I have pondered on myself for years. My answer to this question is and always has been‚ NO! A neutral curriculum‚ in my opinion‚ is one that lacks any thought on morals‚ character education‚ or a teacher’s religious beliefs. I have yet to meet a teacher who does not‚ on a daily basis‚ interject some kind of personal beliefs about classroom
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The industrial separation process that I have decided to do is gold separation. Gold separation can be done in a number of ways but there is not always one way to do it‚ but the combination of a couple of these processes to extract pure gold. Gold is obtained form the lithosphere. It is separated from the ore found in the lithosphere. Gold’s symbol is Au. Its atomic number is 79 and has an atomic mass of 196.96655 amu. Its melting point is 1064.43°C‚ while its boiling point is 2807.0 °C. It is
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Separation of Mixtures 9/11/11 * Introduction: A compound is a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances by chemical reactions. Unlike a compound‚ a mixture is a material system made up by two or more different substances which are mixed together but are not combined chemically. There are two kinds of mixtures‚ homogeneous and heterogeneous. Homogeneous mixtures have the same composition and appearance throughout
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BLG & Co.‚ CPAs 306 3rd Flr. MSA Second St.‚ Ayala-Alabang‚ Muntinlupa City Philippines SUBSTANTIVE TESTS – PURCHASE/ACQUISITION TRANSACTIONS ASSERTIONS OBJECTIVE PROCEDURES I. Existence Or Occurrence II. Rights and Obligations To determine that recorded purchases are for items that were acquired. To determine that purchases are the entity’s acquisitions and liabilities. For a sample of purchase transactions recorded in the purchases journal‚ trace vouchers to authorized purchase
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LAB 6. ACIDS AND BASES: PH AND BUFFERS PURPOSE: To determine the pH of common acids and bases using a pH meter‚ pH paper‚ and red cabbage indicator. To test the effect of adding an acid or base to a buffer solution. SAFETY CONCERNS: Always wear safety goggles. Wash with soap and water if skin contacts acids or bases. ACIDS: An Acid is a substance that when dissolved in water will produce hydrogen ions‚ H+‚ in the solution. An acid that does not contain carbon is called an inorganic
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Separation techniques are an important part of chemistry. However‚ their importance is not just limited to chemistry; they are also used in our daily lives. Separation techniques are methods used to separate and/or purify mixtures. There are many kinds of separation techniques that are used in our day to day life‚ such as filtration‚ Centrifuging‚ Decanting‚ fractional distillation and sieving. Each of these methods has their own specific uses in our daily lives which make our chores much easier
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