Iodine

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Iodine is an element with some interesting characteristics, uses, advantages (and also disadvantages), as well as having some other fascinating information known about it. Iodine has the atomic number 53, and an atomic mass of 126.904. It is solid at room temperature, with a melting point of about 113.5 degrees Celsius, and a boiling point of about 184.4 degrees Celsius. It is also classified as a halogen (a group on the Periodic Table which also includes the elements Fluorine, Chlorine, Bromine, and Astatine) and nonmetal. Iodine is very important in chemistry.
To start with, the element Iodine was discovered in 1811 by a chemist named Bernard Courtois, who was from France. He found this element when conducting experiments on seaweed. In his experiment, he …show more content…
First of all, a tincture of Iodine can be used as a disinfectant for wounds. Silver iodide is used in the film for photography. Iodine can also be used in animal feeds and dyes. However, one of the main uses of Iodine is in medicine in relation to the thyroid. The body needs Iodine in order to function properly, but oddly enough, the body is not able to produce it! Therefore, we have to get it through our diets. Iodine is not naturally found in many foods, but is usually added during processing with salt. Without sufficient Iodine, the thyroid is unable to work correctly. The thyroid is forced to work harder, which can cause it to swell. There are also some other consequences to iodine deficiency that are serious. It can cause women to stop ovulating, and also can increase the risk of getting thyroid cancer, and possibly some other forms of cancer as well. Iodine deficiency is a common problem, and to fix this there has been the addition of Iodine in the salt of many foods. Also, there are some other foods that are high in Iodine that can be added to a diet to keep Iodine at the proper levels. Some of these include: kelp, yogurt, cow’s milk, eggs, and strawberries, along with many

Iodine Experiment

Observations: Table 1-Appearance of Zinc and Iodine: Chemicals Observation Iodine Looks like small silver balls Rubbing Alcohol Looks like clear liquid Zinc Granular Looks like shredded pieces of silver Zinc Powder Looks like a gray fine powder Zinc Mossy Looks like small clumps of silver Zinc Shot Looks like small silver disks Zinc Sheet Looks like thin metal sheets Zinc Rod Looks like rods that are a dull gray color on the outside but a shiny silver on the inside where there are cuts This table…

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Iodine Test

TEST FOR STARCH Iodine test Method: First, we took a test tube and added 2cm³ of 1% starch solution. Then we added a few drops of iodine solution into the same test tube. Both the solutions were initially colourless, but the minute they both come in contact they reacted to give out a blue-black colour. Material List: 1. Starch solution 2. Iodine solution 3. Test tube 4. Test tube rack 5. Goggles 6. Gloves 7. test tube 8. Pipette…

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Iodine And The Stellar Nebula

released into the universe. The planetary nebula will then become a white dwarf. In the midst of space, was an element yet to be discovered by man; Iodine. When Iodine became discovered, it is the fifty-third element on the periodic table. Iodine was found by Bernard Courtois in 1811. After the scientists and people became more familiar with Iodine they started combining the strange purple stuff with other things. In the process of doing they…

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Zinc And Iodine Experiment

PURPOSE The purpose of this experiment is to produce a product using Zinc and Iodine. At the end of this experiment the understanding of the Law Conversation of Mass will be acquired as well as the ability to visually distinguish between a chemical or physical change. Further carrying out this experiment, performs the abilities to determine and calculate the limiting reactant and excess reactant, figure out the empirical formula and balanced chemical equation and lastly performs the ability to calculate…

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Iodine 131 Research Paper

Iodine – 131 Iodine-131 is a product of radioactive fission. After a nuclear explosion, iodine-131 can be released into the atmosphere. It can cause significant harm to humans in large, unregulated amounts. Iodine-131 can cause cancer in the thyroid gland, among other things. However, it can also be a useful tool to for doctors when regulated. After being the atmosphere, iodine-131 can become absorbed by the soil. From the soil, it can be absorbed by plants. Iodine-131 is found especially in leafy…

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Iodine 123 Case Study

Task 1 is about finding the natural decay rate of iodine-123 in multiple thyroid conditions in patients and at different time-stamps. The rate of change of iodine-123 in a healthy patient at 12 hours is -9.8068 micro curies, at 18 hours it is -7.1441 micro curies, and at 24 hours it is -5.2044 micro curies. After knowing these decay rates one can deduce that the rate at which iodine decreases as time increases is a negative relation. At the twelfth hour the decay rate is about -9.8 micro curies and…

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Iodine Clock Lab Report

Iodine Clocks are reactions which involve mixing colorless solutions to produce a sudden color change after an initial induction period (http://web.mst.edu/~gbert/IClock/discussion.htm). The color change occurs because of the formation of a starch-iodine complex(see appendix a). An iodine molecule slips into an amylose coil, part of starch (http://antoine.frostburg.edu/chem/senese/101/redox/faq/starch-as-redox-indicator.shtml). The time delay is inversely related to the rate of the reaction(http://web…

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Iodine Clock Reaction Essay

Exploring Kinetics with the Iodine Clock Reaction Roles: Leader will guide discussion, make sure all aspects of assignment are completed. Experimenter is responsible for gathering and returning materials, cleaning up spills, making sure correct procedure is followed. Recorder is responsible for recording group answers to questions. Procedure: Obtain the following supplies: 1. One well plate with five reagents (0.2% starch, 0.12M Na2S2O3, 0.20M KI, 0.20M (NH4)2S2O8 as illustrated below…

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Iodine and Solution Essay examples

available to donate, the copper (II) will be reduced to copper (I), which turns it brownish-orange. Iodine Test – Starch – When the Iodine solution is added to the starch solution, it produces a black solution, while the other macromolecules produce an orange solution with the Iodine solution. The reason why starch is a positive control for the Iodine test is because it contains Amylose. The iodine molecules slip into the Amylose coil, producing a deep blue/black tint. Biuret Test – Protein – When…

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Iodide and Iodine Essay

Asiyah Robinson 11th October 2014 Experiment 3: ISE (Ion-Selective Electrode) – Chloride Determination Abstract In this experiment, we calculated potential (mV) of three know concentrations of Cl- (2.500 x 10-2, 2.500 x 10-3 and 6.250 x 10-4) and of one unknown sample solution. The 2.500 x 10-2M NaCl solution was created by dissolving 0.3630 grams of NaCl (s) into 250ml…

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