Is triboluminescence a physical property or chemical property

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Triboluminescence is an optical phenomenon in which light is generated when a material is mechanically pulled apart, ripped, scratched, crushed, or rubbed (see tribology).The phenomenon is not fully understood, but appears to be caused by the separation and reunification of static electrical charges.The term comes from the Greek τρίβειν ("to rub"; see tribology) and the Latin lumen (light).

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The system measures the light emitted as a pharmaceutical compound is crushed, using a technique known as triboluminescence. The solid form of an active pharmaceutical ingredient can impact the proportion of that drug that can enter the The instrument crushes pharmaceutical formulations to determine if they have trace crystallinity, which can ... Chlorophane, also sometimes known as pyroemerald, cobra stone, and pyrosmaragd, is a rare variety of the mineral fluorite with the unusual combined properties of thermoluminescence, thermophosphoresence, triboluminescence, and fluorescence: it will emit light in the visible spectrum when exposed to ultraviolet light, when heated, and when rubbed; if heated, it will continue to emit light for a period of time after a heat source is withdrawn.

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the physical and chemical properties of imidazole-based energetic materials.17−23 Our previous studies of this general system have already reported the unimolecular, isolated molecule, decomposition of mononitroimidazoles (model systems), which are chemically and physically similar to the dinitroimidazole energetic ABSTRACT. Eu 2+, Dy 3+-doped SrAl 2 O 4 was prepared by a hydrothermal reaction through the process of calcination at lower temperature. The physicochemical properties of the SrAl 2 O 4: Eu 2+, Dy 3+ phosphor were characterized and compared to those of the SrAl 2 O 4: Eu 2+, Dy 3+ prepared by sol-gel method.

A simple synthesis is proposed from inexpensive reactants of a copper(I) derivative that exhibits strong photoluminescence and, in the crystalline form, exhibits strong triboluminescence. This laboratory provides an opportunity for introducing students to the phenomenon of triboluminescence.