![]() ![]() Ĭharacteristics Physical A copper disc (99.95% pure) made by continuous casting etched to reveal crystallites Copper just above its melting point keeps its pink luster color when enough light outshines the orange incandescence colorĬopper, silver, and gold are in group 11 of the periodic table these three metals have one s-orbital electron on top of a filled d- electron shell and are characterized by high ductility, and electrical and thermal conductivity. ![]() The adult body contains between 1.4 and 2.1 mg of copper per kilogram of body weight. In humans, copper is found mainly in the liver, muscle, and bone. In molluscs and crustaceans, copper is a constituent of the blood pigment hemocyanin, replaced by the iron-complexed hemoglobin in fish and other vertebrates. Copper compounds are used as bacteriostatic agents, fungicides, and wood preservatives.Ĭopper is essential to all living organisms as a trace dietary mineral because it is a key constituent of the respiratory enzyme complex cytochrome c oxidase. Copper is sometimes used in decorative art, both in its elemental metal form and in compounds as pigments. Ĭommonly encountered compounds are copper(II) salts, which often impart blue or green colors to such minerals as azurite, malachite, and turquoise, and have been used widely and historically as pigments.Ĭopper used in buildings, usually for roofing, oxidizes to form a green patina of compounds called verdigris. Coper ( Old English) and copper were derived from this, the later spelling first used around 1530. In the Roman era, copper was mined principally on Cyprus, the origin of the name of the metal, from aes cyprium (metal of Cyprus), later corrupted to cuprum (Latin). 4000 BC and the first metal to be purposely alloyed with another metal, tin, to create bronze, c. 5000 BC the first metal to be cast into a shape in a mold, c. Thousands of years later, it was the first metal to be smelted from sulfide ores, c. This led to very early human use in several regions, from c. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement.Ĭopper is one of the few metals that can occur in nature in a directly usable metallic form ( native metals). A freshly exposed surface of pure copper has a pinkish-orange color. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. Spectra Watermakers products have the complete package: unparalleled engineering design, a worldwide factory-trained sales and technical service network, and a foundation firmly rooted in excellent customer service.Copper is a chemical element with the symbol Cu (from Latin: cuprum) and atomic number 29. The Katadyn Desalination team of engineers and project managers transforms the way the world purifies water and creates products that utilize renewable energy sources like solar arrays and wind turbines to bring you the most reliable, energy-efficient, and service-backed watermakers available. In 2015 Spectra joined with the Katadyn Group, the world leader in portable water treatment systems. Our products save lives, reduce our global carbon footprint, and help to alleviate stress on one of our most precious natural resources. With less than 1% of the global fresh water supply deemed potable, Spectra Watermakers is opening new sources of high quality, safe, fresh drinking water. Since then, the Spectra brand has been synonymous with innovation in desalination technology. In the late 1990s, Spectra Watermakers revolutionized the market with the successful introduction of the Clark pump, which was specially developed for desalinating seawater on sailboats and reduced energy consumption by up to 75% compared to conventional systems through energy recovery. The Spectra product line includes desalination systems that can produce up to 20,000 gallons per day. Spectra Watermakers specializes in energy-efficient desalination systems designed for open ocean vessels, offshore oil platforms, military, disaster relief, emergency preparedness and distributed infrastructure. ![]()
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