pigment
Sign in to savethumb|upright=1.35|Pigments for sale at a market stall in Goa, [[India]] A pigment is a chemical compound that gives a substance or organism color, or is used by humans to add or alter color or change visual appearance. Pigments are nearly or completely insoluble and chemically unreactive in water or another medium; in contrast, dyes are colored substances which are soluble or go into solution at some stage in their use. Dyes are often organic compounds whereas pigments are often inorganic. Pigments of prehistoric and historic value include ochre, charcoal, and lapis lazuli. Biological pigment
AI overview
A pigment is a chemical compound that gives color to substances or organisms, or that humans use to add, alter, or change how something looks. Pigments matter because they're chemically stable and don't dissolve in water or other mediums, making them useful for creating long-lasting colors in paints, dyes, cosmetics, and many other applications.
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Article
20 sectionsContents
- Economic impact
- Physical principles
- History
- Manufacturing and industrial standards
- Figures of merit
- Swatches
- Printed swatches
- Plastic swatches
- Computer swatches
- Biological pigments
- Pigments and polymers
- Polymer pigments
- {{Anchor|Pigments by elemental composition}}Pigments by chemical composition
- Inorganic pigments
- Organic pigments
- Biological pigments
- See also
- Notes
- References
- External links
thumb|upright=1.35|Pigments for sale at a market stall in Goa, [[India]] A pigment is a chemical compound that gives a substance or organism color, or is used by humans to add or alter color or change visual appearance. Pigments are nearly or completely insoluble and chemically unreactive in water or another medium; in contrast, dyes are colored substances which are soluble or go into solution at some stage in their use. Dyes are often organic compounds whereas pigments are often inorganic. Pigments of prehistoric and historic value include ochre, charcoal, and lapis lazuli. Biological pigments are compounds produced by living organisms that provide coloration.
==Economic impact== In 2006, around 7.4 million tons of inorganic, organic, and special pigments were marketed worldwide. According to an April 2018 report by Bloomberg Businessweek, the estimated value of the pigment industry globally is $30 billion. The value of titanium dioxide – used to enhance the white brightness of many products – was placed at $13.2 billion per year, while the color Ferrari red is valued at $300 million each year. For organic pigments, the major application is printing inks followed by paints and coloring plastics and textiles.