Organic pigments are synthetic materials based on carbon usually derived from petrochemicals. They generally are not stable at elevated temperatures and have partial solubility in strong solvents, but do not dissolve in water. Inorganic pigments are metal salts and oxides, some natural and some synthetic, that generally are stable at elevated temperatures and do not dissolve in solvents. Due to their stable chemical structures, most inorganic pigments have better weatherability, dispersibility and opacity than organic pigments, however they will typically have lower chromaticity and tinctorial strength.
