Phosphorescence of Sodium-and Potassium-Acetates

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概要

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• Sodium-and potassium-acetates emit green light for a few seconds, after excited in vacuo with radiation of 254mμ. Their spectra are composed of green band with a maximum at 530mμand blue one at 465mμThe phosphorescence is quenched by oxygen adsorbed in molecular state, and the initial intensity is inversely proportional to the pressure of oxygen, but water vapour and hydrogen do not affect at all. The intensity is also changed by the treatment of the crystal. The activation energy calculated from the temperature dependence of the lifetime is 0.034eV. Their ultraviolet absorption spectra are also measured in aqueous or acetic acid solution to 220mμwith a quartz spectrophotometer. From these results, it may be considered that the phosphorescence is due to imperfcctions of crystal.

• 社団法人日本物理学会の論文
• 1956-04-05

著者

• Osada Kikusaburo

  Faculty Of Engineering Nagoya University

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