Some Observations on the Szilard-Chalmers Process in Dichromates
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T. Andersen
Summary
The initial retentions of samples of monoclinic and triclinic potassium dichromate, irradiated under the same conditions, were found to be 82.4 and 89.5% respectively. Monoclinic solid solutions of K2Cr2O7 in (NH4)2Cr2O7, in the range 0-65 mole% of K2Cr2O7, gave initial retentions which were a smooth, though not linear, function of the composition. The curve could be extrapolated to the value found for the metastable pure monoclinic K2Cr2O7. Unlike (NH4)2Cr2O7, the tetramethyl ammonium salt did not show a decrease in retention on irradiation with ultraviolet light. The photolytic decrease in retention in the ammonium salt does not appear to be thermally reversible.
An entirely non-aqueous method of determining the retention in ammonium dichromate gave the same value as the aqueous procedure.
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Artikel in diesem Heft
- Preparation of 18F in a Nuclear Reactor
- Rapid Solvent Extraction Methods for Fission Product Separation and Analysis
- Half-Life Determination of 220Rn
- The Gas Phase Radiolysis of Ethyl Chloride
- Radiolysis of Ethyl Iodide in the Liquid Phase
- Observations on Spur Reactions in the Liquid Phase γ-Radiolysis
- The Szilard-Chalmers Effect in Cyclohexane-Iodide Mixtures
- The Effect of γ-Pre-Irradiation on Recoil Phenomena in Crystals
- Retention and Annealing Reactions in Dichromates
- Some Observations on the Szilard-Chalmers Process in Dichromates
- A Survey of Photoneutron Sources
- Radiochemical Separation of Thallium by Amalgam Exchange
- Kurze Mitteilungen
- Fast Separation of Antimony from Irradiated Enriched Tellurium
- Beitrag zur strahlenchemisch-thermischen Zersetzung von Kohlenwasserstoffen
Artikel in diesem Heft
- Preparation of 18F in a Nuclear Reactor
- Rapid Solvent Extraction Methods for Fission Product Separation and Analysis
- Half-Life Determination of 220Rn
- The Gas Phase Radiolysis of Ethyl Chloride
- Radiolysis of Ethyl Iodide in the Liquid Phase
- Observations on Spur Reactions in the Liquid Phase γ-Radiolysis
- The Szilard-Chalmers Effect in Cyclohexane-Iodide Mixtures
- The Effect of γ-Pre-Irradiation on Recoil Phenomena in Crystals
- Retention and Annealing Reactions in Dichromates
- Some Observations on the Szilard-Chalmers Process in Dichromates
- A Survey of Photoneutron Sources
- Radiochemical Separation of Thallium by Amalgam Exchange
- Kurze Mitteilungen
- Fast Separation of Antimony from Irradiated Enriched Tellurium
- Beitrag zur strahlenchemisch-thermischen Zersetzung von Kohlenwasserstoffen
