When pigments are suspended in oil why doesn't the oil affect the colour of the pigment?
2007-08-13 08:42:15 · 3 answers · asked by beatme 3 in Science & Mathematics ➔ Chemistry
Dave_Stark so the pigment affects the colour of the oil?
2007-08-13 09:08:02 · update #1
Because the pigment is insoluble in the oil -- it is a suspension, not a solution.
2007-08-13 09:02:25 · answer #1 · answered by Dave_Stark 7 · 0⤊ 0⤋
The oil is transparent and only light coloured. The pigments are intensely coloured and opaque and overpower any colour contributed by the oil.
2007-08-13 17:34:45 · answer #2 · answered by Aurium 6 · 1⤊ 0⤋
chemwiz is right, since the oil is transparent and allows visible light to pass through without being reflected or absorbed (much) the pigments determine the color. The color (visible light wavelength) that you see is the color (wavelength) the pigments do not absorb, they reflect it. Since the oil does not reflect or absorb any visible light wavelength all visible light passes trough, and all you see is the pigment.
2007-08-13 17:46:22 · answer #3 · answered by PD 6 · 0⤊ 0⤋