描述: A pigment is an insoluble, finely ground particulate material that imparts color by selectively absorbing light. The main difference from a dye is solubility: pigments remain suspended, while dyes dissolve in the medium. Pigments are classified as inorganic (mineral-based, simple structure) or organic (synthesized, more complex structures) and are used to color paints, inks, plastics, and fabrics.
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