ARMY ARMAMENT RESEARCH AND DEVELOPMENT CENTER DOVER NJ LARGE CALIBER WEAPON SYSTEMS LAB
TNT solutions in distilled and Picatinny Lake water were photolyzed at 365 nm wavelength. This wavelength is close to the one that gave the maximum product of the sunlight intensity and the TNT absorption coefficient. Results for both waters were the same except that photolysis in Picatinny Lake water had progressed further for the same photolysis time. For short photolysis times, the main features of the differential spectra were a shoulder at 310 nm and bands at approximately 290 nm and 500 nm. The last is probably responsible for the pink color of the solution. For longer photolysis times the band at 500 nm changed drastically to a broad adsorption with shallow bands at approximately 475 and approximately 450 nm indicating that photolyses of the products were occurring. The ultraviolet spectral characteristics suggested a nitrosocompound, while the visible spectra at long photolysis times indicated the presence of a phenolic compound.