The detonation failure diameter was determined for mixtures of dinitrotolue
ne in concentrated nitric acid with zero and negative oxygen balance in fla
t glass dishes. For mixtures with negative oxygen balance, detonation was d
etected in layers 0.10 and 0.12 mm thick, and detonation failure took place
in layers 0.08 mm thick. The data obtained gives complete form to the depe
ndence of the detonation failure diameter on composition for dinitrotoluene
solutions in HNO3.