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References: Chemwiki.ucdavis.edu,. (2015). EDTA - Chemwiki. Retrieved 12 March 2015, from http://chemwiki. ucdavis.edu/Inorganic_Chemistry/Coordination_ Chemistry/Ligands/EDTA Dean, W. (2012). Chelation with EDTA: A Food Additive with Many Remarkable Properties. Ward Dean, MD. Retrieved 12 March 2015, from http:// warddeanmd.com/chelation-with-edta-a-foodadditive-with-many-remarkable-properties/ Federal Institute for Occupational Safety and Health- Notification Unit, (2004), EDETIC ACID (EDTA), Retrieved 12 March 2015 from: http://echa.europa. eu/documents/10162/5ed7db13-e932-4999-8514- 378ce88ca51f Masterton, W., & Hurley, C. (2009). Chelates: natural and synthetic. Belmont, CA: Brooks/Cole, Cengage Learning. Mjguide.com,. (2015). What is EDTA?. Retrieved 12 March 2015, from http://www.mjguide.com/ tutorials/NutrientFormsulations/1717.htm Products, L. (2015). EDTA Chelation: The Real Miracle Therapy for Vascular Disease. Life-enhancement. com. Retrieved 12 March 2015, from http://www. life-enhancement.com/magazine/article/78-edtachelation-the-real-miracle-therapy-for-vasculardisease Scifun.chem.wisc.edu,. (2015). Chemical of the Week -- Chelates and Chelating Agents. Retrieved 12 March 2015, from http://scifun.chem.wisc.edu/chemweek/ chelates/chelates.html University of Maryland Medical Center,. (2015). Ethylenediaminetetraacetic acid. Retrieved 12 March 2015, from http://umm.edu/health/medical/altmed/ supplement/ethylenediaminetetraacetic-acid Webmd.com,. (2015). edta: Uses, Side Effects, Interactions and Warnings - WebMD. Retrieved 12 March 2015, from http://www.webmd.com/ vitamins-supplements/ingredientmono-1032-edta,a spx?activeingredientid=1032&activeingredientname =edta Webmd.com,. (2015). EDTA: Uses and Risks. Retrieved 12 March 2015, from http://www.webmd. com/vitamins-and-supplements/edta-uses-and-risks Sinex, S. (2015). Structure of EDTA. Retrieved from http://www.chm.bris.ac.uk/motm/edta/edtah.htm Cranton, E. (2015). EDTA in medicines. Retrieved from http://www.altcancer.net/medicard.htm Ece KOCADAĞİSTAN 11-B HAIR AND CHEMISTRY Colour, cut, curl, straigthen, tie... Your hair is your best friend who is always on your side. They are a complementary part of a woman’s beauty so their healt is important to any of us. Strong and shiny hairs are good looking and healthy. As long as they are made up of water, lipids, minerals and -most importantly- proteins, human hair is directly related to the chemistery. The Structure of Hair Every single thread of hair is called as a shant of hair. The shant of the hair consists of proteins. The main raw protein is called keratin.Keratin is made of eighteen different amino acids.keratin is produced by kerotinocytes. Those kerotinocytes are functioning differently. Some of them are going to form the outer layer of the hair and some stay inside and grow. Any modification on the hair is related to the bonds between kerarines on the hair. There are some strong bonds that are ionisc and some bonds and some sulphur bridges; and some weak bonds of hydrogen are also in the structure of hair. What To Wash With? Cleaning the hairwith soap or detergent. Eventhough it sounds strange detergents are a better choice for cleaining. The shampoo’s contain a kind of detergent and rather than using soap, detergent is preferable. The soap is leaving some Calcium and Magnesium behind and also because it is alkaline it makes the cuticle get loose and hair look more dull. Any acids are working the vice versa, they make hair shrink in and make it look shineer and be softer so using some vinegar or lemon juice is reccommended. THE CLAPPER 2014 - 2015 57 CHEMISTRY DEPARTMENT