PH of UO2SO4 in H2O - Learning Suggestions

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Discussion Overview

The discussion revolves around learning about the pH of uranyl sulfate (UO2SO4) in water, particularly in the context of its implications for aqueous reactor design and uranium precipitation.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant seeks suggestions for resources on the pH of UO2SO4 in water.
  • Another participant inquires about the solubility constant for uranyl sulfate, framing it as a chemistry question.
  • A participant mentions the relevance of low pH in preventing uranium precipitates in the design of a low-enriched uranium (LEU) subcritical aqueous reactor and asks for recommended sources on aqueous reactor chemistry.
  • One reply suggests that older sources may still be accurate, referencing personal experience with uranyl nitrate solutions and discussing its relation to ammonium diuranate (ADU) precipitation.

Areas of Agreement / Disagreement

Participants express varying degrees of interest in the topic, with no consensus reached on specific resources or the precise chemistry involved.

Contextual Notes

Some assumptions about the chemistry of uranyl compounds and their behavior in aqueous solutions remain unaddressed, and the discussion does not resolve the specifics of the solubility constant or its implications.

Who May Find This Useful

This discussion may be useful for individuals interested in nuclear chemistry, aqueous reactor design, and the behavior of uranium compounds in solution.

dougbrown999
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Does anyone have a suggestion for learning about the pH of UO2SO4 in H2O?
 
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Can one find the solubility constant for uranyl sulphate?

This is really a chemistry question.
 
The question stems from the design of a LEU subcritical aqueous reactor. I am under the impression that keeping the pH low is necessary in order to avoid precipitates of uranium. Does anyone recommend a good source for learning about the chemistry in aqueous reactors?
 
Such sources are probably quite old, but nevertheless accurate. I've used uranyl nitrate solutions in the past. Uranyl nitrate hexahydrate is a precursor to ADU, which is precipitate in ammonium hydroxide IIRC. ADU is ultimately calcined to UO2.

http://digital.library.okstate.edu/OAS/oas_pdf/v54/p83_87.pdf
 
Thanks for the information.
 

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