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Coal tars, soluble dyes from

Quinophthalone was first synthesised by E. Jacobsen in 1882 by fusing phthalic anhydride with quinoline bases derived from coal tar. Derivatives of quinophthalone carrying sulfonic or carboxylic acid groups provide anionic dyes, those with basic side chains such as quaternary nitrogen produce cationic dyes. However, quinophthalones are too soluble in various media to be... [Pg.304]

See other pages where Coal tars, soluble dyes from is mentioned: [Pg.607]    [Pg.74]    [Pg.113]    [Pg.192]    [Pg.205]    [Pg.578]    [Pg.43]    [Pg.209]    [Pg.487]    [Pg.474]    [Pg.118]    [Pg.119]    [Pg.92]    [Pg.205]    [Pg.1163]   
See also in sourсe #XX -- [ Pg.176 ]



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Solubility, dye

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