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This is a list of dyes with Colour Index International generic names and numbers and CAS Registry numbers. This list is incomplete; you can help by adding missing items.
Pages in category "Organic pigments" The following 46 pages are in this category, out of 46 total. This list may not reflect recent changes. A. ... Indigo dye; L ...
Natural dyes are dyes or colorants derived from plants, invertebrates, or minerals. The majority of natural dyes are vegetable dyes from plant sources—roots, berries, bark, leaves, and wood—and other biological sources such as fungi. [1] Archaeologists have found evidence of textile dyeing dating back to the Neolithic period.
Organic pigments. Indigo; Copper phthalocyanine; Aluminosilicate pigments. Ultramarine (PB29): a synthetic or naturally occurring sulfur containing silicate mineral - Na 8–10 Al 6 Si 6 O 24 S 2–4 (generalized formula) Persian blue: made by grinding up the mineral Lapis lazuli.
Sulfur dyes are inexpensive dyes used to dye cotton with dark colors. Dyeing is effected by heating the fabric in a solution of an organic compound, typically a nitrophenol derivative, and sulfide or polysulfide .
Azo dyes are organic compounds bearing the functional group R−N=N−R′, in which R and R′ are usually aryl and substituted aryl groups. They are a commercially important family of azo compounds , i.e. compounds containing the C−N=N−C linkage. [ 1 ]
Red dye No. 3, among other additives, has been banned in California under a new law. ... “You can also limit your intake of red dye No. 3 and other synthetic dyes by choosing certified organic ...
Colorants (both dyes and pigments) are listed using a dual classification which use the Colour Index Generic Name (the prime identifier) and Colour Index Constitution Numbers. These numbers are prefixed with C.I. or CI, for example, C.I. Acid Orange 7 or C.I. 15510 .
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