Analysing The Relationship

The Chemistry of Art > 1. Pigments in Painting > Analysing The Relationship >

Analysing the relationship between the chemical composition of selected pigments and the position of the metallic component(s) of each pigment in the Periodic Table

  • Most pigments contain a metal as to which a color or color range is often associated
    • Iron = red – yellow
    • Chromium = red – yellow
    • Copper = blue – green
    • Cobalt = yellow – violet (depending on co-metals)
  • Most metals involved in pigments are transition metals
    • Color is exhibited by the d-block portion of periodic table with partly filled d subshell
    • Color occurs by the absorption of photons of light and reflection of only certain wavelengths