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Podcast in which Lars Öhrström reveals the hidden chemistry inside modern mobile phones and the reason why current models are so much slimmer than the brick-sized models from the 1980s. Tantalum Pentoxide...
The programme examines the ways of removing oxygen or sulphur in order to extract metals from their ores. Includes footage from both the laboratory and from industrial processes, with the underpinning theory...
Twelve film clips, each covering a single chemical process, which describe how each process works, looking at raw materials, uses for the products, and the geographical siting of the plant. Topics are:...
Places the casting process in context by presenting an overview of the development of the Copper and Bronze Ages in Europe, then describes the ‘metal cycle’ from the point of finding raw copper ore,...
4 (72 min): Explores water purity, safety and the role that chemistry plays in managing the environment. Looks at water management from the maintenance of river water quality to the detailed chemistry of the...
How does scrap copper find its way back to industry for re-use as a manufacturing material? Shows the stages of the recycling loop and the economic motivation that makes the system work. Shows a totter...
Traces the history of copper extraction from Roman times to the end of the 19th century, and then looks at copper demand in the 20th century and how new technologies such as froth flotation enable copper to...
Outlines the problem of copper deficiency and discusses pathogenesis, clinical signs, treatment and control. Clinical copper deficiency is illustrated in a series of colour slides. The problems of diagnosis...
Aims to provide a rational approach to problems of sheep copper deficienty in the field, with questions and answers.
Detailed description of the refining of copper from the relatively crude 97% pure blister copper to the electrolytically refined copper of 99.97% purity.
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