A yellow organic pigment produced in India from the 15th to the 20th century. Indian yellow is composed of magnesium euxanthate. It was originally made from the urine of cows fed exclusively on mango leaves (Mangifera indica Linn.). The washed, powdered material is a clear, golden yellow color that was popular for watercolor and tempera paints. Because the pigment was expensive, it was often adulterated with inorganic yellows, such as chromate lead chromate. The production of Indian yellow was prohibited in 1908 because the mango leaves were harmful to the cattle. Current commercial paints labeled Indian yellow contain a synthetic coal-tar derivative that is more permanent than the original colorant. Authentic Indian yellow fluoresces a bright yellow color when lit with long wavelength ultraviolet light.
Synonyms and Related Terms
magnesium euxanthate; CI 75320; Indischgelb (Deut.); jaune indien (Fr.); Indiko kitrino (Gr.); giallo indiano (It.); giallo euxantato (It.); amarillo indio (Esp.); Indisch geel (Ned.); purre (Ind.); purree; piuri; peori; pioury; purrea Arabica; Hardwari peori; peri rung; peoli; Monghyr puri; gogili; gaugoli; amarillo Indian; snowshoe yellow
Soluble in water, dilute acids, ether, alcohol. Not lightfast in alkali.
The original Indian yellow leaves a small amount of white ash when burned that is soluble in hydrochloric acid. Indian yellow that has been adulterated with an inorganic yellow will leave greater amounts of ash and it will be insoluble.
Low birefringence. Fluoreseces brightly in long wavelength UV.
N.S.Baer, A. Joel, R.L.Feller, N.Indictor, "Indian Yellow", Artists Pigments, Vol. 1, R.L. Feller, ed., Cambridge University Press:Cambridge, 1986.
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