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Of or pertaining to material that changes the color of reflected light by absorbing selected wavelengths.

Contributors in Pigments


chrome green

Organic chemicals; Pigments

Chromium(III) oxide is the inorganic compound of the formula Cr2O3. It is one of principal oxides of chromium and is used as a pigment. In nature, it occurs as the rare mineral eskolaite. Because of ...


Organic chemicals; Pigments

A pigment is a material that changes the colour of reflected or transmitted light as the result of wavelength-selective absorption. Many materials selectively absorb certain wavelengths of light. ...

Carbon black

Organic chemicals; Pigments

Carbon black (Colour Index International, PBK-7) is the name of a common black pigment, traditionally produced from charring organic materials such as wood or bone. It appears black because it ...

Cadmium pigments

Organic chemicals; Pigments

Cadmium pigments are a class of pigments that have cadmium as one of the chemical components. They are highly toxic and can produce cadmium poisoning. The principal pigments are a family of ...

Azo pigments

Organic chemicals; Pigments

Azo pigments are colourless particles (typically earths or clays), which have been coloured using an azo compound. Azo pigments are important in a variety of paints including artist's paints. They ...


Organic chemicals; Pigments

Sanguine or red chalk is chalk of a reddish-brown colour, so called because it resembles the colour of dried blood. It has been popular for centuries for drawing (where white chalk only works on ...


Organic chemicals; Pigments

Malachite is a copper carbonate mineral, with the formula Cu2CO3(OH)2. The pigment is moderately lightfast, very sensitive to acids and varying in color. The natural form was being replaced by its ...

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