Perkin, William Henry

Wilham Henry Perkin was an entrepreneur and a self-made millionaire at an early age, long before the era of personal computers and dot-coms. His serendipitous synthesis of the purple dye mauve (also known as mauveine or aniline purple) in 1856 brought brightly colored clothing to the masses and laid the foundation for today s chemical and pharmaceutical industries. 

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Perkin, William Henry, Jr., 168, 169, 173, 176-181 passim Perkin, William Henry, Sr., 168 Perren, E. A., 201 Perrin, Francis, 127... 

Paracelsus, 14, 15, 18 Parmenides, 9 Pasteur, Louis, 296 Pauli, Wolfgang, 42 Pauling, Linus, 77 Perkins, William Henry, 295 Perrin, Jean Baptiste, 56 Plante, Gaston, 186... 

Easter egg dyes are natural dyes that can be found around the home. They include blue from cabbage leaves or blueberries, orange from yellow onion skins, red from cranberries or raspberries, pale green from spinach leaves, and light yellow from orange or lemon peels. Dyes often have different colors in acidic and alkaline solutions. This enables them to be used as acid-base indicators. Many dyes are utilized as biological stains, see also Cosmetics Perkin, William Henry Pigments. 

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