08:24
The Chemical Industries: Borax Production and Environmental Considerations
The valuable mineral borax was discovered in California's Death Valley in 1882. Today, fifty percent of the world's commercially produced borax comes from the Mojave Desert near Boron, California. Borates are used in hundreds of products and play ...
55:23
Metalloids
Sometimes acting as metals and sometimes as nonmetals, the metalloids may be the strangest and most useful group of elements on the periodic table. Segments in this program include Exploring Metalloids (properties of the metalloids); Boron: Pyrotech...