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Red lac, also called red lake, crimson lake or carmine lake, was an important red pigment in Renaissance and Baroque art. Since it was translucent, thin layers of red lac were built up or glazed over a more opaque, dark color to create a particularly deep and vivid color.
Arsenic pigments. Realgar: As 4 S 4 - a highly toxic natural pigment. Cadmium pigments. Cadmium red (PR108): cadmium sulfo-selenide (Cd2SSe). Cerium pigments. Cerium sulfide red (PR265). Iron oxide pigments. Sanguine, Caput mortuum, Indian red, Venetian red, oxide red (PR102). Red ochre (PR102): anhydrous Fe 2 O 3.
Perylene Red PR149. Several perylene pigments have been developed for artist's paints : Pigment red 149, a middle red, between light and dark cadmium red. (chemical structure: replace HN group in PV29 with 3,5-(CH 3) 2 C 6 H 3). Pigment Red 179, which is close to alizarin crimson (chemical structure: replace HN group in PV29 with CH 3 N).
Carmine (/ ˈ k ɑːr m ə n, ˈ k ɑːr m aɪ n /) – also called cochineal (when it is extracted from the cochineal insect), cochineal extract, crimson lake, or carmine lake – is a pigment of a bright-red color obtained from the aluminium complex derived from carminic acid. [2] Specific code names for the pigment include natural red 4, C.I ...
Lithol Rubine BK is a reddish synthetic azo dye.It has the appearance of a red powder and is magenta when printed. It is slightly soluble in hot water, insoluble in cold water, and insoluble in ethanol.
Iron oxide pigments in jars: yellow, red, brown. Iron oxide red is a generic name of a ferric oxide pigment of reddish colors. Multiple shades based on both anhydrous Fe 2 O 3 and its hydrates were known to painters since prehistory. The pigments were originally obtained from natural sources, since the 20th century they are mostly synthetic.
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The two Isomers of perinone [1] are useful pigments. The trans isomer is called Pigment Orange 43 ("PO43", CID 78141 from PubChem) and the cis isomer is called Pigment Red 194 ("PR194", CID 77892 from PubChem). [2] Like some structurally related compounds perinone is also an organic semiconductor. [3]