Properties of fridmons and the early stage of evolution of the universe $10^{-6}-10^{-5}$

In the framework of the model of a hot universe, estimates are made of the possible concentration of fridmons (fundamental particles with mass $10^{-6}-10^{-5}$ g) in the early stages of evolution of the universe. It is shown that the matter density at the time of “quenching” of the fridmons is $10^{85}$ g/sm$^3$.