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Luminol (C 8 H 7 N 3 O 2) is a chemical that exhibits chemiluminescence, with a blue glow, when mixed with an appropriate oxidizing agent. Luminol is a white-to-pale ...
Phenobarbital, also known as phenobarbitone or phenobarb, sold under the brand name Luminal among others, is a medication of the barbiturate type. [6] It is recommended by the World Health Organization (WHO) for the treatment of certain types of epilepsy in developing countries. [8]
Glow sticks were originally invented by the US Military, [16] and are an essential part of military operations across land and sea, where they are more often referred to as chem lights. Glow sticks are also used within police tactical units , as light sources during night operations or close-quarters combat in dark areas.
Chemiluminescence after a reaction of hydrogen peroxide and luminol. Luminol in an alkaline solution with hydrogen peroxide in the presence of iron or copper, [5] or an auxiliary oxidant, [6] produces 3-aminophtalate in an excited state, which exhibits chemiluminescence. The luminol reaction is
Radioluminescent paint is a self-luminous paint that consists of a small amount of a radioactive isotope (radionuclide) mixed with a radioluminescent phosphor chemical. The radioisotope continually decays, emitting radiation particles which strike molecules of the phosphor, exciting them to emit visible light.
c. 1885 Incandescent gas mantle invented, revolutionises gas lighting. 1886 Great Barrington, Massachusetts demonstration project, a much more versatile (long-distance transmission) transformer based alternating current based indoor incandescent lighting system introduced by William Stanley, Jr. working for George Westinghouse. [8]
He invented a fluorescent lamp in 1896 that used a coating of calcium tungstate as the fluorescing substance, excited by X-rays. Although it received a patent in 1907, [6] it was not put into production. As with a few other attempts to use Geissler tubes for illumination, it had a short operating life, and given the success of the incandescent ...
A mixture of luminol and hydrogen peroxide is used in forensics. When the mixture is sprayed on an area that contains blood , the iron in the hemoglobin in the blood catalyzes a reaction between the mixture, resulting in 3-aminophthalate which gives out light by chemiluminescence .