Element collectors will be much more familiar with this dangerous substance in its liquid state when it takes a striking hue that appears redder than blood itself. But bromine is an element with an extremely high vapor point. Keeping it in its liquid state is a chore as it yearns to be a gas. Even in its gaseous state a bulb filled with it will look distinctly ruddy. However, turn down that pressure a bit and place it next to a sufficiently high current and the gas inside turns to ionized plasma and in this case glows a ghostly yellow.

You can do this effect yourself most easily by placing the ampule next to a plasma globe the sort that are sold on Amazon and novelty shops. The larger and more powerful the globe the easier it will be to get it to light up!

Note additional options for this element on the Ampules section