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The chemical traffic light is a color-changing redox reaction that is related to the blue bottle experiment. One of the early formulas consists of glucose , sodium hydroxide , indigo carmine (dye), and water .
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[60] [58] The redox properties can be seen in a classical demonstration of chemical kinetics in general chemistry, the "blue bottle" experiment. Typically, a solution is made of glucose (dextrose), methylene blue, and sodium hydroxide. Upon shaking the bottle, oxygen oxidizes methylene blue, and the solution turns blue. The dextrose will ...
Garrett Augustus Morgan Sr. (March 4, 1877 – July 27, 1963) was an American inventor, businessman, and community leader.His most notable inventions were a type of three-way traffic light, [1] and a protective 'smoke hood' [2] notably used in a 1916 tunnel construction disaster rescue.
Blue bottle (chemical reaction) The Blue Bottle Coffee House, Vienna, founded in 1686; Blue Bottle Coffee, roaster based in Oakland, California, US; Bluebottle (character), in The Goon Show; Bluebottle OS, computer operating system; Fizzy Blue Bottles, a type of sour sweets; A slang term for a police officer