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Both of these are now out-of-print in their paper versions, but are available free of charge in electronic versions. After the release of a draft version for public comment in 2004 [4] and the publication of several revised sections in the journal Pure and Applied Chemistry, a fully revised version was published in print in 2013. [5] [2]
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 .
The Orange Book is one of IUPAC's "Color Books" along with the Nomenclature of Organic Chemistry (Blue Book), Nomenclature of Inorganic Chemistry (Red Book), Quantities, Units and Symbols in Physical Chemistry (Green Book), Compendium of Chemical Terminology (Gold Book), Compendium of Polymer Terminology and Nomenclature (Purple Book), Compendium of Terminology and Nomenclature of Properties ...
Several of the CPK colors refer mnemonically to colors of the pure elements or notable compound. For example, hydrogen is a colorless gas, carbon as charcoal, graphite or coke is black, sulfur powder is yellow, chlorine is a greenish gas, bromine is a dark red liquid, iodine in ether is violet, amorphous phosphorus is red, rust is dark orange-red, etc.
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.
Color theory, or more specifically traditional color theory, is a historical body of knowledge describing the behavior of colors, namely in color mixing, color contrast effects, color harmony, color schemes and color symbolism. [1] Modern color theory is generally referred to as color science.
It is advised to check the references for photos of reaction results. [1] Reagent testers might show the colour of the desired substance while not showing a different colour for a more dangerous additive. [2]
In chemistry, a color reaction or colour reaction is a chemical reaction that is used to transform colorless chemical compounds into colored derivatives which can be detected visually or with the aid of a colorimeter. The concentration of a colorless solution cannot normally be determined with a colorimeter.