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Paraldehyde-fuchsin

Experiment 9.—Pure paraldehyde is tested by the previously described aldehyde reactions with ammoniacal silver nitrate, fuchsine-sulphurous acid, and bisulphite solutions. All are negative. [Pg.217]

In the course of the reactions described in section (I) the complex silver and bismuth ions are reduced to the metal by the -CHO group of the aldehyde. No reaction occurs if this group is not present (paraldehyde). In reaction (II) the SO3 group of the fuchsinesulfurous acid is split off and adds to the aldehyde to form an a-hydroxysulfonic acid. The color of the fuchsine itself is now visible. All the normal reactions of an aldehyde are observed if acetaldehyde is set free from its trimer paraldehyde. Sulfuric acid catalyses both the forward and back reactions in this equilibrium (eqn. 1) ... [Pg.313]

See other pages where Paraldehyde-fuchsin is mentioned: [Pg.28]    [Pg.181]    [Pg.226]    [Pg.230]    [Pg.802]    [Pg.28]    [Pg.181]    [Pg.226]    [Pg.230]    [Pg.802]    [Pg.6]    [Pg.28]   
See also in sourсe #XX -- [ Pg.28 , Pg.180 , Pg.226 ]



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Fuchsin

Fuchsine

Paraldehyde

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