This paper reports the chemical properties of copper picrate synthesized by three different methods. Differential scanning calorimetry analysis showed that the decomposition of copper picrate starts at a lower temperature than that of picric acid, and that the heat of exothermic reaction for copper picrate was less than that for picric acid. The results of elemental and thermogravimetry analyses show that the hydrate of the copper picrate ranged from trihydrate to tetrahydrate but that it has more crystalline water at low temperature. Crystalline water dehydration occurred between 300 - 400 K. Copper picrate was dehydrated by heating in a vacuum and copper picrate non-hydrate confirmed to have the property of re-hydration. The copper picrate synthesized in this study had similar chemical properties for all synthesis methods.