Ice crystals

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    Introduction Crystal Nawa Blackwood was born in Johannesburg, South Africa to extremely wealthy parents who had a very large house and a great deal of shares in some of the world's biggest companies as well as running two or three large and successful companies of their own. She had a halcyon childhood for the five years that it lasted. Her cousin, Seth Falk Blackwood was the same, born five years before her. Her parents, her aunt and her uncle, as well as her cousins apart from Seth, were hunted down and slaughtered, dying outright from gunshot wounds inflicted by assassins. The only survivors were Crystal and Seth, and that was because they were not with their parents and so survived. After the substantial number of funerals, which Crystal…

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    Ice is also known as “Crystal methamphetamine” is a stimulant drug which comes in different forms, shapes and sizes. A stimulant drug speeds up the messages traveling throughout the body. It is a very addictive drug and is more stronger than the powder form of methamphetamine which is called speed. Ice is a man made chemical made from chemicals like battery acid, drain cleaner, lantern fuel and antifreeze. It is usually smoked or injected and causes people to be energetic. The drug was first…

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    Blanching Research Paper

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    Freezing is an essential preservation method in the food industry. When fresh fruits and vegetables are harvested the enzymes in them begin to change the fruit. They can lose color, nutrients, and their desired taste if not preserved. Along with freezing there are other strategies used to inactivate these enzymes. Vegetables are blanched before freezing and fruit can be dipped in a sugar syrup before freezing to keep them at their best. One of the main problems faced with freezing is a change in…

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    The crystal size is also affected by the rate of cooling and larger crystals were shown to be formed when fat was cooled at a slower cooling rate83. However the samples were not subjected to changes in the rate of cooling in this study. At higher temperatures (or lower supercooling conditions) due to decrease in the driving force, less crystals are formed although the crystals are larger in size as compared to those formed at lower temperatures83. At lower temperatures, due to the higher driving…

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    was added to a test tube and mixed until dissolved. 2ml hexane was then added to the test tube, followed by 0.4ml cyclopentadiene. The test tube reacted for 5 minutes in a test tube rack and then 2 minutes in an ice-bath to allow for complete crystallization. The crystals were then put through the filtering apparatus to collect and dry all the crystals. About 3ml was used to rinse the crystals while in the apparatus. The crystals were then dried and the yield and melting point were taken.…

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    Recrystallization Essay

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    The main purpose of this experiment is to purify an impure solid by the technique of recrystallization. This technique involves several steps, selecting an ideal solvent, dissolving the compound in a minimum amount of boiling hot solvent, filtering insoluble impurities while the solution is hot; crystallizing the purified compound, and isolate the pure compound by vacuum filtration . The unknown used in the experiment was #4, which were white crystals. In order to determine the ideal solvent…

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    Abstract: The objective of this experiment was to synthesize aspirin from salicylic acid and acetic anhydride. The general theory behind this experiment was to study the synthesis of a drug from organic materials. During the experiment, esterification had occurred between reactants salicylic acid and acetic anhydride. Then, phosphoric acid would catalyze the reaction and water would be added to decompose the remaining acetic anhydride. Through the process of filtration, aspirin crystals were…

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    Methamphetamine can ruin a person’s body like Luke Williams the author of The Ice Age: A Journey into Crystal-meth Addiction, he wrote this book while doing meth. There is only a way they can get into society and it is meth labs. Most meth labs are in the U.S in Michigan. The southwest area of Michigan has the highest meth lab rates in history, Michigan Legislation is trying to keep the south west society safe from meth. Meth labs are busted every year in Michigan around the south west and in…

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    I. Diamonds are crystals made of a chemical called carbon. They are the hardest known natural material in the world, and one of the most valuable. In the Greek language, the word diamond means indestructible. It is possible to create diamonds with carbon and by applying extreme heat and pressure. Diamonds are measured in carats; one carat is two-hundred milligrams. Diamonds are better conductors then any other metal in the world, four times better than copper. Time, money, and extreme heat and…

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    Structure Of Isotinamide

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    TITLE: QUALITATIVE PHASE IDENTIFICATION & CRYSTAL STRUSTURE ANALYSIS OF ISONICOTINAMIDE POLYMORPHS. INTRODUCTION The science of crystallography is important in stability studies and determination of solid state molecule or particles. Isonicotinamide (pyridine -4- carboxamide) is the amide form of isonicotinic acid which exists as different polymorphs. Isonicotinamide finds extensive use in the pharmaceutical industry because of its good anti-tubercular, anti-bacterial, anti-pyretic and…

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