Dinitrotriethylene glycol—

Triethylene glycol dinitrate (dinitrotriethylene glycol, nitrotriglycol, dinitrotriglycol or triglycol dinitrate) ... 

The solubility of dinitrotriethylene glycol in the spent acid is exceptionally high amounting to 8-9%. Denitrating such an acid can be hazardous in view of the presence of such a large amount of an explosive substance. Separation takes place slowly and lasts over half an hour. This is an added hazard, since dinitro-triglycol readily decomposes in the presence of spent add. It is therefore necessary to add water to the spent acid before the oily explosive material is separated, and the residual spent acid is transferred to the denitration unit. The separated oil is washed twice with water, then with a sodium carbonate solution and finally with water. A sample of washed and neutralized triethylene glycol dinitrate should withstand the heat test for 20 min at 82°C. 

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