Gases are soluble in molten copper helpful in mechanical and electrical properties of solidified metal. Copper (II) are stable in air than copper(I) compounds. Copper (I) compounds are weak reducing agents they react with air and make copper (II) compounds. Copper compound exist in two oxidation state +1 and +2. Chemical characteristicsĬopper has low chemical activity, it slowly reacts with oxygen and form a layer of brown black copper oxide that protects the underlying metal from further corrosion. Various alloys of copper also have antimicrobial properties. Copper is biostatic in nature that means no bacteria and other forms of life can grow on it. Copper is very dense in nature its density at 20 oC is 8.9 g/cm 3. Its melting point is 1083 oC and boiling point is 2595 oC. Copper’s atomic number is 29 and its atomic mass is 63.54g/mol. Copper dissolve in a mixture of hydrogen peroxide and hydrochloric acid to form copper chloride. Copper is flexible and soft due to which it can be stretched into wires easily. Copper oxidizes in the air and exhibit green color that’s why roof of building looks green. Physical characteristicsįresh Copper has pinkish color but soon convert into reddish orange color due to direct exposure with oxygen. Commercially copper is produced through smelting, followed by electrodeposition from sulfate solutions. Other major producers are Peru, China and the United States. Andes Mountains in Chile is the greatest known deposit of copper mineral. In invertebrates it is present in many mollusks and arthropods. It is also present in the ashes of sea weeds and in sea corals. In combined form it exit as chalcocite (sulfide mineral), chalcopyrite (copper +iron sulfide), bornite (copper+ iron ore), cuprite (oxide mineral), malachite (copper carbonate) and azurite (copper carbonate).
#COPPER ELEMENT PERIODIC TABLE FREE#
Copper Periodic Table ClassificationĬopper is widely present in many parts of world in combined state and free state. The symbol of copper is Cu, derived from cuprum. The term copper was introduced for the first time in 1530. The name copper has been originated from Cyprium, which is Latin for metal of Cyprus. In the Temple of King Sa’H-Re in Abusir, copper tubes for conveying water were used in 2750 BC. Later, bronze which is an alloy of copper and tin was introduced between 3500 to 2500 BC in West Asia and Europe. Early societies used it in place of gold and silver for making decorative items and ornaments. Copper was the first metal that was smelted from ores in 5000 BC and later used in pottery in North Africa. Discovery and HistoryĬopper has been known from prehistoric times and Neolithic humans used copper as stones as early as 8000 BCE. Copper resist corrosion and is widely used in making various alloys. It is an excellent conductor of heat and electricity. Copper is relative inexpensive metal and widely used since old civilization.
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