This monograph for Picric Acid provides, in addition to common physical constants, a general description including typical appearance, applications, aqueous solubility, and pKa. The monograph also details the following specifications and corresponding tests for verifying that a substance meets ACS Reagent Grade specifications including: Water, Melting Point (Dried), Insoluble, Resinous Matter, Insoluble in Toluene, and Sulfate. Special caution is advised for the handling or testing of this substance.