For 10 points, identify this color most commonly associated with the elements sulfur and gold.
The Briggs-Rauscher oscillating reaction exhibits this color when iodide is absent from the solution and free iodine is allowed to accumulate. Azo dyes and nitro compounds display this color due to extensive conjugation and delocalization. At high pH values, chromate salts display this color, while milled (*) uranium oxides are found as a namesake powder of this color. The D lines of the Fraunhofer spectrum are of this color, and bromophenol blue turns this color below a pH of 3. In the flame test, sodium burns a bright version of this color. For 10 points, identify this color most commonly associated with the elements sulfur and gold.
The Briggs-Rauscher oscillating reaction exhibits this color when iodide is absent from the solution and free iodine is allowed to accumulate.
yellow (accept variants like gold (before mention) or amber but not “orange”)