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Ponceau (17th century French for "poppy-coloured") is the generic name for a family of azo dyes. Ponceau 4R is a strawberry red azo dye which can be used in a variety of food products, and is usually synthesized from aromatic hydrocarbons ; it is stable to light, heat, and acid but fades in the presence of ascorbic acid.
Play the USA TODAY Crossword Puzzle. Los Angeles Times crossword Today’s crossword (McMeel) Daily Commuter crossword SUDOKU. Play the USA TODAY Sudoku Game. JUMBLE. Jumbles: OPERA MESSY SPRUNG ...
Synthetic colorants are those created in a laboratory or industrial setting. The production and improvement of colorants was a driver of the early synthetic chemical industry, in fact many of today's largest chemical producers started as dye-works in the late 19th or early 20th centuries, including Bayer AG (1863). [ 2 ]
Jean-Baptiste Guimet (20 July 1795 – 8 April 1871), French industrial chemist, and inventor of synthetic colors, [2] was born at Voiron, Isère.. He studied at the École Polytechnique in Paris, and in 1817 entered the Administration des Poudres et Salpêtres. [3]
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Han blue: BaCuSi 4 O 10. Azurite: cupric carbonate hydroxide (Cu 3 (CO 3) 2 (OH) 2). Basic copper carbonate: Cu 2 (OH) 2 CO 3. Iron pigments. Prussian blue (PB27): a synthetic inert pigment made of iron and cyanide: C 18 Fe 7 N 18. Manganese pigments. YInMn Blue: a synthetic pigment discovered in 2009 (YIn 1−x Mn x O 3). [4] Manganese blue ...
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