Bromophenol blue (3',3",5',5"-tetrabromophenolsulfonphthalein, BPB, albutest) is used as an acid-base indicator, a color marker and a dye. It can be prepared by slowly adding excess bromine to a hot solution of phenolsulfonphthalein in glacial acetic acid.
Read more about Bromophenol Blue: Acid-base Indicator, Color Marker, Dye
Famous quotes containing the word blue:
“Sometimes we see a cloud that’s dragonish,
A vapor sometimes like a bear or lion,
A towered citadel, a pendant rock,
A forked mountain, or blue promontory
With trees upon ‘t that nod unto the world
And mock our eyes with air. Thou hast seen these signs;
They are black vesper’s pageants.”
—William Shakespeare (1564–1616)