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Sorbitan monooleate (commercially: Span® 80; Croda International PLC) is a nonionic surfactant and emulsifier widely used in various industries, including food, pharmaceuticals, and cosmetics. It is a sorbitan ester produced by the esterification of sorbitan with oleic acid, resulting in a light yellow, viscous liquid that is insoluble in ...
The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows ("periods") and columns ("groups"). It is an icon of chemistry and is widely used in physics and other sciences.
Thus element 164 with 7d 10 9s 0 is noted by Fricke et al. to be analogous to palladium with 4d 10 5s 0, and they consider elements 157–172 to have chemical analogies to groups 3–18 (though they are ambivalent on whether elements 165 and 166 are more like group 1 and 2 elements or more like group 11 and 12 elements, respectively). Thus ...
A tetrapod is a form of wave-dissipating concrete block used to prevent erosion caused by weather and longshore drift, primarily to enforce coastal structures such as seawalls and breakwaters. Tetrapods are made of concrete , and use a tetrahedral shape to dissipate the force of incoming waves by allowing water to flow around rather than ...
The group 12 elements zinc, cadmium, and mercury are sometimes regarded as main group, rather than transition group, because they are chemically and physically more similar to the p-block elements than the other d-block elements. The group 3 elements are occasionally considered main group elements due to their similarities to the s-block ...
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Nate Tice & Charles McDonald fire up the Foootball 301 fifth quarter with a look at four excellent games from Week 14's Sunday slate and one game that will have Chicago Bears fans wearing a bag ...
Michael Vick appears ready to make the jump into coaching. The former Atlanta Falcons and Philadelphia Eagles quarterback is in discussions with both Norfolk State and Sacramento State to take ...