urbaf2

336 CHEMISTRY AND TECHNOLOGY OF EXPLOSIVES

Effect of light

The unsymmetrical isomers of trinitrotoluene are affected by light in an appa-

rently similar way, as in the instance of α− isomer, turning brown on exposure to

sun. However, the chemical nature of the process has not been investigated.

PREPARATION AND CONSTITUTION

OF UNSYMMETRICAL TRINITROTOLUENES

The following reactions give an indication of structure and the mode of

preparation of the isomers: