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Aminomethyl propanol (AMP) is an organic compound with the formula H 2 NC(CH 3) 2 CH 2 OH. It is colorless liquid that is classified as an alkanolamine. It is a useful buffer and a precursor to numerous other organic compounds. [2] Aminomethyl propanol is typically sold as a solution of the material in water, for which different concentrations ...
Kundt's tube is an experimental acoustical apparatus invented in 1866 by German physicist August Kundt [1] [2] for the measurement of the speed of sound in a gas or a solid rod. The experiment is still taught today due to its ability to demonstrate longitudinal waves in a gas (which can often be difficult to visualise).
Ceramic shell casting techniques using silica, zirconia and other refractory materials are currently used by the metal parts industry for 'net casting', forming precision shell moulds for molten metal casting. The technique involves a successive wet dipping and dry powder coating or stucco to build up the mould shell layer.
The other is a white powder which Dalton referred to as "the deutoxide of tin", which is 78.7% tin and 21.3% oxygen. Adjusting these figures, in the grey powder there is about 13.5 g of oxygen for every 100 g of tin, and in the white powder there is about 27 g of oxygen for every 100 g of tin. 13.5 and 27 form a ratio of 1:2.
[2] Scheme 1. Directed ortho metalation. The general principle is outlined in scheme 1. An aromatic ring system with a DMG group 1 interacts with an alkyllithium such as n-butyllithium in its specific aggregation state (hence (R-Li) n) to intermediate 2 since the hetero atom on the DMG is a Lewis base and lithium the Lewis acid.
The graphite interlayer distance increases upon Ca intercalation from 3.35 to 4.524 Å, and the carbon-carbon distance increases from 1.42 to 1.444 Å. Structure of CaC 6. With barium and ammonia, the cations are solvated, giving the stoichiometry (Ba(NH 3) 2.5 C 10.9 (stage 1)) or those with caesium, hydrogen and potassium (CsC 8 ·K 2 H 4/3 C ...
The designation "L/56" means the barrel is 56 times 88 mm - about 4.9 m (16 ft 1 in). The longer the tube is in relation to its bore, the higher the muzzle velocity it can generate on fixed charge. A longer gun barrel allows the expanding gas from the shell's charge to act on the projectile longer than a short barrel, imparting it more velocity ...
m s −1 [L][T] −1 (Oscillatory) acceleration amplitude A, a 0, a m. Here a 0 is used. m s −2 [L][T] −2: Spatial position Position of a point in space, not necessarily a point on the wave profile or any line of propagation d, r: m [L] Wave profile displacement