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  2. Color of chemicals - Wikipedia

    en.wikipedia.org/wiki/Color_of_chemicals

    The color of chemicals is a physical property of chemicals that in most cases comes from the excitation of electrons due to an absorption of energy performed by the chemical. The study of chemical structure by means of energy absorption and release is generally referred to as spectroscopy.

  3. List of inorganic pigments - Wikipedia

    en.wikipedia.org/wiki/List_of_inorganic_pigments

    Scheele's Green: yellowish-green pigment commonly used during the early to mid-19th century (AsCuHO 3) Paris Green: It was manufactured in 1814 to be a pigment to make a vibrant green paint; Cadmium pigments. Cadmium green: a light green pigment consisting of a mixture of cadmium yellow (CdS) and chrome green (Cr 2 O 3). Chromium pigments

  4. Biological pigment - Wikipedia

    en.wikipedia.org/wiki/Biological_pigment

    Pigment color differs from structural color in that it is the same for all viewing angles, whereas structural color is the result of selective reflection or iridescence, usually because of multilayer structures. For example, butterfly wings typically contain structural color, although many butterflies have cells that contain pigment as well. [3]

  5. Carotenoid - Wikipedia

    en.wikipedia.org/wiki/Carotenoid

    The aureus (golden) pigment that gives some strains of Staphylococcus aureus their name is a carotenoid called staphyloxanthin. This carotenoid is a virulence factor with an antioxidant action that helps the microbe evade death by reactive oxygen species used by the host immune system.

  6. Chromophore - Wikipedia

    en.wikipedia.org/wiki/Chromophore

    Examples are chlorophyll, which is used by plants for photosynthesis and hemoglobin, the oxygen transporter in the blood of vertebrate animals. In these two examples, a metal is complexed at the center of a tetrapyrrole macrocycle ring: the metal being iron in the heme group (iron in a porphyrin ring) of hemoglobin, or magnesium complexed in a ...

  7. Cadmium pigments - Wikipedia

    en.wikipedia.org/wiki/Cadmium_pigments

    Cadmium pigments are a class of pigments that contain cadmium.Most of the cadmium produced worldwide has been for use in rechargeable nickel–cadmium batteries, which have been replaced by other rechargeable nickel-chemistry cell varieties such as NiMH cells, [3] but about half of the remaining consumption of cadmium, which is approximately 2,000 tonnes (2,200 short tons) annually, is used to ...

  8. CPK coloring - Wikipedia

    en.wikipedia.org/wiki/CPK_coloring

    Several of the CPK colors refer mnemonically to colors of the pure elements or notable compound. For example, hydrogen is a colorless gas, carbon as charcoal, graphite or coke is black, sulfur powder is yellow, chlorine is a greenish gas, bromine is a dark red liquid, iodine in ether is violet, amorphous phosphorus is red, rust is dark orange-red, etc.

  9. Category:Pigments - Wikipedia

    en.wikipedia.org/wiki/Category:Pigments

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