This is interesting phenomenon, which occurs at first, we observed in 1979. This results are presented in the work [52]. As it was said by means of direct Electron Paramagnetic Resonans (EPR) measurements it became possible to show, that under the influence of H₂O₂ vapours the cristalic substances (mainly the salts) in more quantities, than it is possible to expect at given temperature [63], transfer in volume. Let stop a little bit on this phenomenon, because of its great significance. We investigated this phenomenon in vacuum glass equipment, the scheme of which is depicted in Figure 56.

The temperature of reactor is 310 ^OC. As the reactor is covered by ~0,1 sm. salt layer, then the outward surface of salt layer, which is in direct contact with the vapours of H₂O₂ is in the more low temperature. In the case of 310 ^OC that is approximately 150- 200⁰ C. The vapour of H₂O₂ pass through the reaction zone at 10^-3 sec. The investigations showed, that the radicals, which is formed from decomposition of H₂O₂, by their nature differ from ordinary HO₂. In the Figure 60 the EPR specters of paramagnetic particles, which were received by decomposition of H₂O₂ on glass (a), KBr (b), NaCI (c), KCI (d) are brought.

In the work [56] all this registered signals were considered as specters of HO₂ radicals, but were distorted by various influence of different matrices . For verification of this hypothesis as an experimental samples we used the salts CuSO₄ and CuCI₂, which are paramagnetic. In case of CuSO₄ the signal is not different from the spectrum of HO₂. In the case of CuCl₂ the picture is other. It is registered signal (a) broughtin the Figure 61, which is overlapped signals of Cu⁺² ion and HO₂ radical.

Figure 61. a) EPR spectrum, obtained during H₂O₂ decomposition on the surface of CuCl₂, b) sample spectrum (a) after decrease of temperature of a matrix to 80 ^OC with the further freezing. P_H2O2 = 0,1 tor.

Really when being in -196 ^OC matrix is warmed by 80^O (in that conditions the radicals HO₂ are recombined fast), then is registered only the signal of Cu⁺² ion. This experience undoubtedly shows, that the decomposition of H₂O₂ in CuCl₂ is accompanied by transference of salt from solid state to gas state, and in the case of CuSO₄ that absences. This conclusion in the further investigation [62] is fully consistent.

This phenomenon of cristalic matter is not limited only by salts. Similar property transference is typical for certain metalloxides [62]. The kinetic and thermodynamic measurements assertrd, that the phase transference is conditioned by formation of new compounds[64]. The salt or the oxide in pure state does not pass in the gas phase. From interaction of H₂O₂ and solid matter on the surface unknown compounds (X) are formed, which pass in the gas phase and shows considerable stability their. From their further disintegration pick out kristalic matter (the salt or the oxide).