METHOD OF MARKING EXPLOSIVE SUBSTANCE Russian patent published in 2017 - IPC C06B23/00 G06K1/00 G01N33/22 

FIELD: chemistry.

SUBSTANCE: invention relates to chemical methods of expertise of explosive substances and forensic identifying preparations. A method of marking an explosive substance consists in the introduction of a marking composition, containing identifiers, the quantity of which equals the quantity of technical parameters to be marked, into the explosive substance, obtained by mixing of separate components. To mark the explosive substance each separate component, included into the mixture of the explosive substance, is marked. The marking composition for each separate component is composed of at least one polymer material from the group of polyorganosiloxanes with the length of a molecular chain, representing an identifier, different from lengths of molecular chains and values of viscosity of polymer materials in the marking compositions of other separate components, constituting the mixture of the explosive substance. As the marking composition of the explosive substance a set of marking compositions of separate components of the said substance mixture is used.

EFFECT: improvement of marking.

3 cl, 3 dwg, 1 tbl