DATA AND RESULTS Substances Treatment Observation Rapid cooling Slow cooling Benzoic acid + NaCl + congo red Heat and filter Colorless solution‚ Coarse crystals Colorless solution‚ Fine crystal Crystallization is a highly effective method for the purification of organic substances‚ provided that the physical properties of a given compound permits its purification in this manner. Solid organic compounds when isolated from organic mixtures or reactions are seldom pure; they are usually contaminated
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ZERO SCORE Paragraph 1 There are three phases whereby each has a different crystal structure at three different temperatures. At room temperature (298K)‚ Phase III is present whereby Cs3H(SeO4)2 has a crystal structure of a monoclinic with a space group of C2/m. At 400K‚ Phase II is present whereby Cs3H(SeO4)2 has a crystal structure of a monoclinic-A2/a symmetry. At 470K‚ Phase I is present whereby Cs3H(SeO4)2 has a crystal structure of a trigonal with a space group of R3-m. In Phase III‚ as we can
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A PAPER ON “SMART MATERIALS:A NEW TREND IN TECHNOLOGY” PRESENTED BY‚ SAHIL G. GOVINDWAR. govindwar.sahil@gmail.com Contact No: 7709575108. BABASAHEB NAIK COLLEGE OF ENGINEERING‚ CIVIL ENGINEERING DEPARTMENT. PUSAD. . CONTENTS . Sr. No. | Title | Page No. | 1 | Abstract | 1 | 2 | Introduction | 1 | 3 | Classification | 2 | 4 | Advantages and Disadvantages |
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Effects of curing condition of solution cast Nafion® membranes on PEMFC performance Korean J. Chem. Eng.26(3)‚ 679-684 (2009) Thickness of membrane ~ 50µm There are some disadvantages of the solution casting method that the cold cast films are generally mechanically weak‚ susceptible to crack formation and soluble in many polar solvents‚ especially in water at room temperature. Generally‚ the annealed films undergo morphological changes when heated above the glass transition temperature (Tg=109oC
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Date: 9/10/2012 Title: Carbohydrates: monosaccharides & disaccharides Objective: To investigate the physical‚ functional and sensual properties of carbohydrates Introduction: Carbohydrates are the main energy source for human. There are different types of carbohydrates‚ monosaccharide‚ disaccharide and polysaccharide. Although different types of carbohydrates have different properties‚ they are important in human body‚ for example‚ glucose‚ glycogen‚ lactose‚ etc. This practical will
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Marriott Corporation Evaluating the cost of capital 1. What is the weighted average cost of capital for Marriott Corporation? 1 (a) What risk-free rate and risk premium did you use to calculate the cost of equity? R (f)‚ or risk free rate used for calculating cost of equity was the Geometric Mean (GM) for LT US govt. bond returns (Exhibit 4). We used the overall GM of 1926-1987 of 4.27%. This is because this is the period that Marriott has been in operation and would be a good reflection
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Donguines March 02‚ 2015 MW 4:00-5:30 ROXAS HOLDINGS MULLS SUGAR ECOZONES Summary: Roxas Holdings‚ Inc. is a sugar milling company‚ which owns and manages sugar manufacturing companies. Central Azucarera Don Pedro is engaged in the producing‚ marketing and selling raw and refined sugar‚ molasses and other related products and offers tolling services to traders and planters. Central Azucarera de la Carlota produces raw sugar and molasses and trades the same on wholesale or retail basis. Roxas
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Sugar is the world’s predominant sweetener. It satisfies the human appetite for sweetness and contributes calories to our diet. Sugar is used in cooking‚ in the preparation of commercially processed foods‚ and as an additive to drinks; it is also a preservative and fermenting agent. It sweetens without changing the flavor of food and drink. It is cheap to transport‚ easy to store‚ and relatively imperishable. Production of Sugar Sugarcane is a perennial grass of the humid tropics. Sugarcane is
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molassMolasses is thick dark syrup that is a byproduct of sugar refining‚ and is the concentrated syrup leftover when sugar crystals are extracted. The darker the molasses is the more crystalline sugar has been removed. It most commonly made from sugar cane‚ grapes or beets. The most widely available molasses is sugar cane molasses because it is often used in baking. The quality of molasses depends on the maturity of the sugar cane or sugar beet‚ the amount of sugar extracted‚ and the method of extraction. Molasses
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with sugar 3. Pharmocology. A concentrated sugar solution that contains medication or flavoring.” This means that a syrup is a sugar and a liquid (most often water but can be fruit juice). A simple syrup is water and sugar boiled together until the sugar melts. The sugar can be regular white granulated sugar‚ brown sugar‚ molasses‚ or honey. (any type of sugar can be used) The ratio of sugar to water depends on how thick you want the final syrup to be. For a thin syrup use 1 part sugar to 3
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