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The color of chemicals is a physical property of chemicals that in most cases comes from the excitation of electrons due to an absorption of energy performed by the chemical. The study of chemical structure by means of energy absorption and release is generally referred to as spectroscopy .
IUPAC Color Books. The International Union of Pure and Applied Chemistry (IUPAC) publishes many books which contain its complete list of definitions. The definitions are divided initially into seven IUPAC Colour Books: Gold, Green, Blue, Purple, Orange, White, and Red. [1] There is also an eighth book, the "Silver Book".
Chemical chameleon. The chemical chameleon is a redox reaction, well known from classroom demonstrations, that exploits the dramatic color changes associated with the various oxidation states of manganese. [1][2] Glauber reported the first description of the production of potassium permanganate when he noted that manganese dioxide (as the ...
Chowking (Chinese: 超群; pinyin: chāoqún; lit. 'preeminent') is a Filipino fast food restaurant chain that serves Filipino Chinese cuisine. Founded in 1985, Chowking was acquired by Jollibee Foods Corporation in 2000. It is widely considered the country's most popular restaurant of Chinese-Filipino food and was once the second-largest ...
Werner's yellow. Werner's Nomenclature of Colours is a book of named colour samples compiled by Abraham Gottlob Werner, and subsequently amended by Patrick Syme. [1] The book, first published in 1814, was used by Charles Darwin in his scientific observations. [2][3] Werner's Nomenclature can be viewed as a predecessor of modern named colour ...
CPK coloring. A plastic ball-and-stick model of proline. These models usually comply with CPK coloring. In chemistry, the CPK coloring (for Corey – Pauling – Koltun) is a popular color convention for distinguishing atoms of different chemical elements in molecular models.
Choking, also known as foreign body airway obstruction (FBAO), is a phenomenon that occurs when breathing is impeded by a blockage inside of the respiratory tract. An obstruction that prevents oxygen from entering the lungs results in oxygen deprivation. Although oxygen stored in the blood and lungs can keep a person alive for several minutes ...
Color science is the scientific study of color including lighting and optics; measurement of light and color; the physiology, psychophysics, and modeling of color vision; and color reproduction. It is the modern extension of traditional color theory .