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Lucas test: negative (left) with ethanol and positive with t-butanol "Lucas' reagent" is a solution of anhydrous zinc chloride in concentrated hydrochloric acid. This solution is used to classify alcohols of low molecular weight. The reaction is a substitution in which the chloride replaces a hydroxyl group.
Lucas Oil owns or sponsors motorsports race teams, events and series at all levels, including NASCAR, INDYCAR, NHRA, IHRA, POWRi, ASCS, WAR and MLRA. [13] Lucas Oil also owns and operates many high-profile racing series, including Lucas Oil Off Road Racing Series, Monster Jam, Lucas Oil Drag Boat Series, Lucas Oil Pro Pulling League, Lucas Oil Late Model Dirt Series, Lucas Oil Modified Series ...
The contribution of the muscle to the specific heat of the body is approximately 47%, and the contribution of the fat and skin is approximately 24%. The specific heat of tissues range from ~0.7 kJ · kg−1 · °C−1 for tooth (enamel) to 4.2 kJ · kg−1 · °C−1 for eye (sclera). [13]
[1] The early extreme pressure additives were based on lead salts of fatty acids ("lead soaps"), "active sulfur" compounds (e.g. thiols and elementary sulfur), and chlorinated compounds. During the 1950s the use of lead soaps was eliminated and replaced by zinc and phosphorus compounds such as zinc dithiophosphate. [3] Some of the EP additives are:
The reaction is effected with zinc. The key zinc-intermediate formed is a carbenoid (iodomethyl)zinc iodide which reacts with alkenes to afford the cyclopropanated product. The rate of forming the active zinc species is increased via ultrasonication since the initial reaction occurs at the surface of the metal.
Zinc stearate is a "zinc soap" that is widely used industrially. In this context, soap is used in its formal sense, a metal salt of a fatty acid : in this case stearic acid . It is a white solid that repels water.
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