Dyes and Conjugation
Various dyes used through history. Stresses the conjugation aspect of dyes. Also, demonstrate to students organic chemistry's founding in the 1850's aniline dye industry (many present day chemical giants such as Bayer, BASF, etc. had their start as dye factories). Also, shows a "modern" dye and aspects that make it colorful, long-lasting, and easy to apply to fabric.