The students can find the mean, mode, median, and range of the prices of the chemicals by the pound and tons. It is commonly used in refractory bricks to line steel making blast furnaces and glass fiber kilns. Chromic oxide is harder than iron or titanium. It is used in brake linings and other products that have to withstand very high temperatures. It is used as a pigment in paints, enamels, and plastics.
Chrome hydrate is used in bar soaps and eye shadow.
Sodium dichromate is a bright orange crystal. It is used in photographic chemicals, engraving, lithography, and pyrotechnic products. Chromic Acid is used in wood preservation. It is also used for chrome metal coatings such as chromed auto parts. Chromic Acid is also used to treat aluminum for painting such as aircraft.