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June 12, 1956Proceedings of the Royal Society of London A Mathematical and Physical Sciences

A new sensitive chemical actinometer - II. Potassium ferrioxalate as a standard chemical actinometer

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Authors

CHC. G. HatchardRoyal NavyCPC. A. ParkerNorth Carolina State University

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Implication

Experimental evaluation demonstrates reliable quantum efficiency for potassium ferrioxalate across twelve wavelengths, highlighting its value as a standard chemical actinometer.

Key Points

  • To evaluate the photolysis of acidified potassium ferrioxalate solutions and establish its quantum efficiency as a standard chemical actinometer.
  • Measured quantum efficiency across twelve wavelengths ranging from 254 to 578 mμ.
  • Investigated the effects of reaction temperature, light intensity, and photolyte composition on photochemical behavior.
  • Validated quantum efficiency values using independent comparisons with uranyl oxalate actinometry and a calibrated thermopile.
  • Established precise quantum efficiency values across the ultraviolet and visible spectrum between 254 and 578 mμ.
  • Demonstrated that potassium ferrioxalate functions as a highly sensitive chemical actinometer suitable for replacing uranyl oxalate across diverse photochemical applications.

Cite This Study

Hatchard et al. (1956) studied this question.

synapsesocial.com/papers/69f869d4bcfc91ffbfa628e3https://doi.org/10.1098/rspa.1956.0102
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