Demonstration of the Spectrophotometric Complementary Color Wheel Using LEDs and Indicator Dyes

• W. Russ Algar ^[1] ; Caitlyn A. G. De Jong ^[1] ; E. Jane Maxwell ^[1] ; Chad G. Atkins ^[1]
  1. [1] University of British Columbia

     University of British Columbia

     Canadá

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 93, Nº 1, 2016, págs. 162-165
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • A quick, simple, and engaging demonstration of the spectrophotometric complementary color wheel is presented. Colored indicator dye solutions are illuminated under ambient room light and with different colors of light-emitting diodes (LEDs) in a dark room. The solutions are observed to be colored, black and opaque, or transparent and colorless in accordance with the color wheel, their optical absorption spectra, and the illumination conditions.