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Aluminum Oxide Research Paper

1021 Words5 Pages

Yashmakova, Alexandra

9/3

21 February, 2016

RESEARCH PARAGRAPHS

ALUMINUM OXIDE

Aluminum oxide is a chemical compound with the chemical formula Al2O3 which consists of oxygen and aluminium. It is found in the nature as the mineral corundum which is colourless and very hard substance used as an abrasive. Aluminum oxide is characterised with its colour, insolubility in water and its melting point which is 2030 oC. The boiling point of this compound is 2977oC. Its density is 3.97 g/cm³. The corundum which is found in the …show more content…

"Aluminum Oxide, Al2O3 Ceramic Properties." Accuratus., 2013. Web. 21 Feb. 2017. .

"Aluminium Oxide | Al2O3." National Center for Biotechnology Information. U.S. National Library of Medicine, 10 May 2010. Web. 21 Feb. 2017. …show more content…

It is white spongy gelatinous substance which does not dissolve in water. It is found in the nature as the mineral hydrargilite and reacts with stong bases only under heating. The melting point of that compound is 300oC. Its density is 2.1 - 2.7 g/cm3. Aluminum hydroxide is amphoteric which means that it reacts easily both with strong acids and strong bases. An example is the reaction of Aluminum hydroxide with sulfuric acid when dialuminum trisulfate is formed. This compound is used in many different ways and is added to products that we use in our everyday lives. This compound is used as a water purifier, is put in cosmetics, medicines and last but not least plays an important role in the photographic development processes. In medicine Aluminum hydroxide is used for the production of vaccines for some of the most important illnesses part of which are hepatitis a, hepatitis B, tetanus and many other. It is also put in medicines which deal with the right development of the immune system. Another place where this compound is used are the cosmetics which people use in their everyday skin care such as deodorants, conditioners, toothpastes, products for skin cleaning due to its ability to act as a skin protectant. Aluminum hydroxide is also used in the production of glass and cement, in the textile industry for the production of waterproof

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