"Cadmium chloride is currently a key ingredient in solar cell technology used in millions of solar panels around the world. This soluble compound is highly toxic and expensive to produce, requiring elaborate safety measures to protect workers during manufacture and then specialist disposal when panels are no longer needed. Now, a University of Liverpool researcher has found that it can be replaced with magnesium chloride, which is extracted from seawater and is already used in products such as tofu, bath salts and for de-icing roads." Full Text Available Here. http://phys.org/news/2014-06-tofu-ingredient-revolutionise-solar-panel.html#jCp