Chemical Formula and Pigment Codes of Four Blue Paints

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Four Blues In this lab we will compare the chemical formula of four paints and discuss how they absorb energy (visible light) to be colored. Materials Golden’s Cobalt Blue Golden’s Cobalt Blue Hue Golden’s Ultramarine Golden’s Phthalo Blue Look at the paint tubes for the four blues and write their pigments codes. Pigment Code Golden’s Cobalt Blue Golden’s Cobalt Blue Hue Golden’s Ultramarine Golden’s Phthalo Blue Research the pigment codes and find out which chemical formula they have. Chemical Formula Golden’s Cobalt Blue Golden’s Cobalt Blue Hue Golden’s Ultramarine Golden’s Phthalo Blue Make the structure for the different chemicals. 

Which paint contains cobalt? Which paint contains copper? Which paint contain Aluminum? Explain how each of them absorb energy (light) to be colored.