Hydrogen Peroxide is one of the cleanest, most versatile strategic base chemicals available. It is used at the large scale as oxidising agent in the chemical industry, as a propellant in rocket and satellite technology, mining industry, precious metal recycling, desinfectant and many other applications. Often the use of high concentrated H2O2 is essential. However, due to the limited accessability and handling capability the physical/chemical properties at concentrations of aqueous preparations up to 87% or 98% H2O2 content are still unresolved. Especially differences in the degree of molecular association, O-O bond lengths and hydrogen bonding deserve attention. We propose to compare the IINS spectra of a set of hydrogen peroxide preparations of increasing concentration using TOSCA (translational, librational and HO-OH torsions) and MAPS (H-O-H bend, H-OOH bend and O-H stretch).