Abstract
Dawsey, Urey and Rice1 claimed to have excited the OH-band 3064 A. in fluorescence in hydrogen peroxide vapour, the processes involved being: H2O2 + hν1 → HO + OH* OH* → OH + hν2. In these experiments, light from a zinc spark was passed through an acetone filter, which removed light of wave-lengths shorter than λ 2025, down a quartz tube containing hydrogen peroxide vapour and thence to the slit of the spectrograph. The OH-band appeared weakly against a spark ‘background’, the intensity of which in this region was partly reduced by the acetone filter. No exposure-time was given, and it is to be supposed that the spark was running in air.
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References
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DYNE, P., STYLE, D. Excitation of OH- and SH-Band Systems in Fluorescence. Nature 167, 899 (1951). https://doi.org/10.1038/167899a0
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DOI: https://doi.org/10.1038/167899a0
