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[242] Aurina

Date: November 9th, 2007 | Comments : none | Categories: Colorants.

Aurina
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        Colorant "trifenil-metanic acid", derivat al fucsonei.

                                 ____
                               //    \\\\
                              <        >-OH
               ____         /  \\ ____ /
             / ---- \\     /      ----
        O = <        > = C                       aurina
             \\ ____ /     \\      ____
               ----         \\  //    \\\\
                              <        >-OH
                               \\ ____ /
                                 ----
Culoare galbena, insolubila in apa, solubile in alcool si acid acetic. Se
foloseste drept colorant pentru hirtie.

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