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Gold Bond is a brand of over-the-counter skin care products produced by Chattem of Chattanooga, Tennessee, now a subsidiary of the French pharmaceutical company Sanofi. It is available as both a powder and a topical cream. Gold Bond is used to curb moisture, control odor, and soothe minor skin irritations, notably jock itch.
Some gold compounds exhibit aurophilic bonding, which describes the tendency of gold ions to interact at distances that are too long to be a conventional Au–Au bond but shorter than van der Waals bonding. The interaction is estimated to be comparable in strength to that of a hydrogen bond. Well-defined cluster compounds are numerous. [46]
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Gold compounds are compounds by the element gold (Au). Although gold is the most noble of the noble metals, [ 1][ 2] it still forms many diverse compounds. The oxidation state of gold in its compounds ranges from −1 to +5, but Au (I) and Au (III) dominate its chemistry. Au (I), referred to as the aurous ion, is the most common oxidation state ...
The bond-dissociation energy ( BDE, D0, or DH°) is one measure of the strength of a chemical bond A−B. It can be defined as the standard enthalpy change when A−B is cleaved by homolysis to give fragments A and B, which are usually radical species. [ 1][ 2] The enthalpy change is temperature-dependent, and the bond-dissociation energy is ...
Metallic bonding is a type of chemical bonding that arises from the electrostatic attractive force between conduction electrons (in the form of an electron cloud of delocalized electrons) and positively charged metal ions. It may be described as the sharing of free electrons among a structure of positively charged ions ( cations ).
In chemistry, bond energy ( BE) is one measure of the strength of a chemical bond. It is sometimes called the mean bond, bond enthalpy, average bond enthalpy, or bond strength. [ 1][ 2][ 3] IUPAC defines bond energy as the average value of the gas-phase bond-dissociation energy (usually at a temperature of 298.15 K) for all bonds of the same ...
Kevlar (para-aramid) [ 2] is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora. Developed by Stephanie Kwolek at DuPont in 1965, [ 3][ 2][ 4] the high-strength material was first used commercially in the early 1970s as a replacement for steel in racing tires.
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