of light surface rust don’t require part replacement and can be chemically treated with a liquid rust inhibitor. No matter the brand‚ all rust inhibitors work basically the same way. Their main ingredient is phosphoric acid‚ which converts rust into iron phosphate‚ chemically stopping the oxidation process. Parts can be dipped in rust inhibitor‚ but the more
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hnefnatafl and listening to sagas told by storytellers. I was hungry so I told the person guiding me about‚ some women gave me a midday meal. It was dried pork‚ lamb boiled in an iron pot with carrot‚ peas‚ wild onions‚ nettles‚ herbs and dandelion leaves. I finished the meal and went on looking around the area. Iron weapons
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obtains the newest technology‚ flourishes. This is due to the difficulty in lower costs of steel production. Better technology is one of the only ways to decrease costs because labor is pretty much at a set cost and all that is left is the cost of iron and making the steel. If a company can get its hands on a new technology that allows it to under price its competitors then it has a big advantage in the steel industry. Nucor’s main rivals in the steel industry are AK Steel Holding Corporation‚ Mittal
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(REMOVING IRON AND SULFUR) Cu2S(s) + flux solution + O2 (g) + heat (furnace) Fe(s) +flux slag (silica flux chemically binds with Fe‚ and removed) Slag O2(g) +S(g) SO2 (g)(S combines with O2 and is released through exhaust) SO2(g) Cu2S(s) +FeS(s) Cu2SFeS(s) (60% copper sulphide 40%iron sulphide) CONVERTING (removing of remaining traces of Iron and Sulfur)
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molten compounds. For aluminium‚ aluminium oxide (from the ore Bauxite) is used For Group 1 and 2 metals‚ the metal chlorides are usually used. Electrolysis is a very expensive process because of the cost of electrical energy. Carbon Zinc Iron Lead Zn Fe Pb Reduction of the metal oxides in a blast furnace. Carbon is used as the reducing agent. It is often in the form of coke (made from coal). Although this uses a lot of energy‚ this is cheaper than using electricity. Hydrogen
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w w ap eP m e tr .X w om .c s er UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education 0620/12 CHEMISTRY Paper 1 Multiple Choice May/June 2010 45 Minutes Additional Materials: *8778752636* Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB is recommended) READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples‚ paper clips‚ highlighters‚ glue or correction
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is not only sold well in domestic market but also exported to Japan‚ USA‚ Germany‚ India‚ Taiwan and Hongkong. In the international market‚ more than 80 tons of Mg has been used in the desulphurisation of steel and iron each year. China is the main country in producing steel and iron‚ and it has been predicted by experts that China needs 300‚000~500‚000 tons of Mg for industrial processing from now on to the year 2005. The consumption of the metal Mg has increased with an average rate of 6.6% each
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treated leaves were then dried in different drying conditions like direct sun drying‚ shade drying and tray drying. The dried leaves were analyzed for their nutritional and organoleptic qualities. The percent retention of ascorbic acid‚ Calcium and Iron was found maximum in tray-dried leaves as compared to sun and shade drying methods. The study revealed that the tray drying method was found suitable for dehydration of curry leaves with better retention of nutrients‚ dehydration and organoleptic qualities
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countries‚ for over a decade. Observing a growing potential of exports we are expanding our reach to the Middle Eastern countries. Over the years we have earned a remarkable reputation in the manufacturing and export of brassware‚ galvanized and wrought iron items‚ aluminium ware‚ stainless steel utensils and EPNS ware etc. We emphasize customer satisfaction through quality products‚ timely delivery and competitive prices. OUR PRODUCTS: Flatware‚ Bowls Nautical products Artistic candle holders
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extracted and used for many thousands of years * Outline and examine some uses of different metals through history‚ including contemporary uses‚ as uncombined metals or as alloys. Contemporary Uses of common metals Metal | Uses | Iron and Steel (an alloy with <2% carbon)Good tensile strength‚ cheap‚ rusts (corrodes) | - Railways‚ bridges‚ buildings- motor cars bodies‚ ships and trains- Engine blocks‚ fire hydrants‚ drainage pipes‚ and gates- Reinforcing in concrete (roads‚ bridges
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