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Tartrazine is a synthetic lemon yellow azo dye primarily used ... lipstick, etc. – even those that are primarily pink or purple. (Usually make-up manufacturers use ...
Quercitron is a yellow natural dye obtained from the bark of the Eastern Black Oak (Quercus velutina), a forest tree indigenous in North America. It was formerly called Dutch pink, English pink, or Italian pink. [1]
The names stil de grain yellow and yellow madder came into use as the name for this yellow pigment in the early to mid-18th century, replacing the former name pinke. [10] [11] In the 17th century, the word pink or pinke was used to describe a yellowish pigment, which was mixed with blue colors to yield greenish colors.
Pink LEDs can be produced using two methods, either with a blue LED using two phosphors (yellow for the first phosphor, and red, orange, or pink for the second), or by placing a pink dye on top of a white LED. Color shifting was a common issue with early pink LEDs, where the red, orange, or pink phosphors or dyes faded over time, causing the ...
Tartrazine, a dye used in making Doritos, has a light-absorbing quality that researchers used to apply to mice so they could see through the skin. ... a bright yellow-orange food coloring used in ...
Food coloring, color additive or colorant is any dye, pigment, or substance that imparts color when it is added to food or beverages. Colorants can be supplied as liquids, powders, gels, or pastes. Food coloring is commonly used in commercial products and in domestic cooking.
The dye was used for imperial manuscripts on purple parchment, often with text in silver or gold, and porphyrogenitos or "born in the purple" was a term for Byzantine offspring of a reigning Emperor. The color matched the increasingly rare purple rock porphyry, also associated with the imperial family.
Chrome yellow or crocoite (PY34): lead chromate (PbCrO 4). Cobalt pigments. Aureolin or cobalt yellow (PY40): potassium cobaltinitrite (K 3 Co(NO 2) 6). Iron pigments. Yellow ochre (PY43): a naturally occurring clay of monohydrated ferric oxide (Fe 2 O 3 ·H 2 O). Lead pigments. Naples yellow (PY41). Lead-tin-yellow: PbSnO 4 or Pb(Sn,Si)O 3 ...