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Acoustic coupling, liquid media

The data derived from calorimetric measurements reflect acoustic power delivery for fairly well matched loads. This is not always the case under normal working conditions. If the calorimeter is used as reaction vessel, and if a matching system is used, the difference in acoustical impedance between the medium inside the calorimeter and the coupling liquid must be known in order to introduce a correction factor. [Pg.13]

The Michael and related conjugate additions287 can be carried out in aqueous media. Alkyl groups add to electron-deficient alkenes using a zinc-copper couple prepared as described above. Sonication is necessary in practically all the examples published. The medium can consist of a mixture of water with lower alcohols, acetone, or even pyridine. In some cases, the composition corresponds to a maximum structuredness of the liquid, which parallels an optimal absorption of acoustic energy. ... [Pg.225]

See other pages where Acoustic coupling, liquid media is mentioned: [Pg.29]    [Pg.76]    [Pg.10]    [Pg.225]    [Pg.48]    [Pg.400]    [Pg.188]    [Pg.369]    [Pg.233]    [Pg.420]    [Pg.1248]    [Pg.422]    [Pg.1007]    [Pg.308]    [Pg.373]    [Pg.421]    [Pg.422]   
See also in sourсe #XX -- [ Pg.245 ]



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