Zinc Metal and its Alloys

The chief ores of Zinc are zinc blende (zinc sulphide) and calamine (zinc carbonate). In the extraction of the metal, the ore is first roasted in a reverberatory furnace to convert the sulphide to oxide, and in the case of calamine, to drive off carbonic acid and water. The roasted ore is then reduced either in a furnace or by electrolysis process. Zinc is fairly heavy; bluish-white metal used principally because of its low cost, corrosion resistance and alloying properties. The melting point of Zinc is 4190C. The protection of…

Read More