Making an inorganic pigment

Pigments are colour additives which are insoluble in the medium to which is added. Dyes are also colour additives, which are soluble in the medium to which it is added to: Water, Alcohol, Glycerine or oils. The difference is that a dye will dissolve in some suitable liquids where as a pigment wouldn’t.

2) Why do we see objects as coloured, in particular what part do absorption, reflection and transmission of light play?

The colour of anything we observe depends upon a few factors. Everything is made up of electrons and atoms. Those atoms and electrons govern how something will look when in light. Any objects by its nature will, when exposed to light do one of the following:

v Reflect or scatter light (Reflection and Scattering)

A lot of objects reflect light to some degree, however something that is particularly reflective, has more fee electrons that are able to pass from atom to atom with ease. The light energy that is absorbed by these electrons is not passed onto any other atom

Some topics in this essay:
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