Coating (PCC) is a patented process that applies a protective graphene coating to copper wire‚ protecting the wire from corrosion that can cause wire failure and enhancing the wire’s electrical conductivity. As a result of its superior conductivity‚ a smaller diameter PCC wire is able to perform the same job as a thicker‚ heavier conventionally-coated copper wire. Competitive coatings (beryllium or cadmium-copper alloys) are heavier‚ vulnerable to corrosion‚ and produce highly-regulated hazardous
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Goggles‚ eight test tubes‚ a rack for the tubes‚ three strips of Zinc‚ two strips of Copper‚ three strips of Magnesium‚ steel wool‚ Lead nitrate‚ Silver nitrate‚ Copper sulfate‚ Magnesium chloride‚ Zinc chloride‚ Sodium chloride‚ and Potassium. V. Procedure: In tube 1 add five drops of Lead nitrate. In tube 2 add five drops of Silver nitrate. Drop a strip of copper metal into tubes 1 and 2. Next add five drops of Copper sulfate into tube 3‚ five drops of Lead nitrate into tube 4‚ and five drops of Magnesium
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not easy. Batteries consist of two different metals suspended in an acidic solution. Copper and Zinc work well as the metals and the citric acid content of a lemon will provide the acidic solution. Batteries like this will not be able to run a motor or energize most light bulbs. It is possible to produce a dim glow from an LED. The picture at the top of this page shows a basic lemon battery‚ a lemon‚ copper penny and zinc coated nail. The lemon: A large‚ fresh‚ "juicy" lemon works best. The
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still it go back to its natural form. It became a big crystal. Naphthalene ball dissolve by means of air. It evaporates. Copper wire with Nitric Acid Objective: In this experiment‚ we’re going to find what will happen if we put the piece of copper wire in the Nitric Acid. And what type of reaction will occur. Materials: Test tube Graduated Cylinder Test tube rack Copper wire Beaker Nitric Acid Test tube holder Observation: 1. The color of the Nitric Acid is similar in the color
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MAKING SALTS. AIM: In this experiment the aim was to get Copper Carbonate to react with Sulphuric Acid to get Copper Sulphate. EQUIPMENT USED: o 5 Grams of Carbon Carbonate o Weighing Boat‚ Spatula & Scales o 25 cm³ Sulphuric Acid o Beaker o Tripod and Gauze o Bunsen burner‚ Splint and Matches o Filter Funnel and Filter Paper o Conical Flask o Glass Dish RISK ASSESSMENT: o Sulphuric Acid – Corrosive o Safety Glasses and Lab Coats to be worn o Any Spillage‚ dilute with water
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platedmetals include nickel‚copper‚ and gold. While the electroplating is in progress‚ additionalsalts of the metal to be plated must continually be added to the platingsolution‚ or else the anode must be renewed‚ if it consists of the platingmetal. If the coating metal does not form a strong alloy with the metal to be plated‚ it may be necessary to first coat with an intermediate metal; for example‚ when plating silver on steel‚ it is customary to first place a coating of copper over the steel. When
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Qualitative Cation Tests Name Test Tube 1: HClNH3 Test Tube 2: NaOHExcess Aluminum 3+ No precipitate Slightly milky Dissolves Ammonium + No Precipitate No precipitate Calcium 2+ No Precipitate Milky white precipitate Precipitate does not dissolve Copper 2+ No precipitate Became much darker blue and milky Iron 3+ Brighter yellow Orange precipitate that then dissolves Lead 2+ Milky white precipitate Precipitate gets more milky Silver + Milky white precipitate Precipitate gets more milky with ammonium
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on measuring the ecological impacts in hopes of reducing them. A multitude of tools have since been created to measure efficiency in hopes to highlight areas for improvement‚ of which the ISO standard and Life cycle assessment are part of. Undoubtedly‚ many companies have adopted life cycle analysis (LCA) in order to assess and reduce their product’s impact on the environment. The fashion industry‚ at its core‚ is based on the notion of continual consumption of the ‘new’ and the discard of the ‘old’
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ductile metal slightly harder than gold. Silver is extremely flexible‚ this means that it can be converted into both flat sheets and electrical wire. This makes silver is an ideal metal for all kinds of industrial use. Silver occurs in lead‚ Zinc and copper ore deposits. Lead ore is the main source of Silver. In fact‚ 75% of the resources in the world are found in association with other metal ores. The most important mineral is argentite‚ Sulphur Sulphide. Secondary sources are price sensitive. Secondary
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seen from the points where the lines change slope in Figure l(a). Table 1. Corrosion Reactions with N o Hydrogen Evolution Examples Mplecular complexmg agent Zinc in dilute acetic acid Iron in dilute HCI Copper in aqueous PITH3 Cop er in aqueous et&lenediamine Copper‚ silver‚ and rold in CN-solution Acid Corrosion With N o Hydrogen Evolution Three groups of reactions of this type can he identified. These are shown in Table 1‚ and the kinetics of these processes are plotted
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