Hydrogen peroxide absorption cross sections

Metallic appearance in massive form, black to metallic color in powdered state or in electrodeposited form hexagonal crystal system density 20.53 g/cm3 hardness (Brinell) 250 melts at 3,180°C vaporizes at 5,627°C (estimated) vapor pressure 4.6x10- torr at 2,500°C electrical resistivity 19.14 microhm -cm modulus of elasticity 67x10 psi at 20°C specific magnetic susceptibility 0.369x10 thermal neutron absorption cross section 86 barns/atom superconductivity transition temperature 1.7°K insoluble in water and hydrochloric acid soluble in dilute nitric acid and hydrogen peroxide slightly soluble in sulfuric acid. 

Keywords Absorption cross section Hydrogen peroxide Hydroxyl radical ... 

Figure 4-39. Spectral distribution of the absorption cross section of water vapor (H2O), methane (CH4), hydrogen peroxide (H2O2), and the peroxy radical...

The absorption cross section of hydrogen peroxide is shown in Figure 4.39. In the spectral domain which is important in the stratosphere, absorption cross section measurements have been made by Schurgens and Welge (1968) from 120 to 200 nm, Holt et al. (1948) and Holt and Oldenberg (1949) from 185 to 253 nm, and Urey et al. (1929) from 215 to 380 nm. More recent measurements include those of Lin et al. (1978), Molina and Molina (1981), Nicovich and Wine (1988), and Vaghjiani and Ravishankara (1989). The cross sections vary slightly with temperature. The photodissociation quantum efficiency is believed to be unity. 

Lin, C.L., N.K. Rohatgi, and W.B. Demore, Ultraviolet absorption cross sections of hydrogen peroxide. Geophys Res Lett 5, 113, 1978. 

Nicovich, J.M., and P.H. Wine, Temperature-dependent absorption cross section of the hydrogen peroxide vapor, J Geophys Res 93, 2417, 1988. 

Figure 4. Absorption and fluorescence cross sections of hydrogen peroxide in the 106-193 nm region.

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