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Pine-shaving test

When the ammonium salt of saccharic acid or of mucic acid is heated, pyrrole is formed (SECTION 658). The latter imparts a carmine-red coloration to a pine-wood shaving which has been moistened with hydrochloric acid. Test the mucic acid obtained in this way as follows Mix 0.1 gram of the acid with 2 cc. of ammonia and evaporate to dryness. Heat the residue strongly in a test-tube during the heating suspend in the tube a soft pine splinter which has been soaked in concentrated hydrochloric acid for a minute or two. [Pg.122]

See other pages where Pine-shaving test is mentioned: [Pg.465]    [Pg.683]    [Pg.767]    [Pg.66]    [Pg.657]    [Pg.765]    [Pg.807]    [Pg.465]    [Pg.683]    [Pg.767]    [Pg.66]    [Pg.657]    [Pg.765]    [Pg.807]    [Pg.854]    [Pg.243]    [Pg.268]   
See also in sourсe #XX -- [ Pg.66 ]



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