Solving Oxygen Contamination in a Glove Box with Clathrates

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Discussion Overview

The discussion revolves around the challenge of oxygen contamination in a glove box filled with Argon while working with clathrate compounds. Participants explore potential solutions to eliminate residual oxygen that interferes with the purity of clathrates and affects thermodynamic measurements.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant describes the issue of residual oxygen forming an oxide layer on clathrates, which disrupts thermodynamic data collection.
  • Another participant suggests introducing chemicals to absorb or adsorb remaining oxygen after sealing the glove box with Argon.
  • A different participant inquires about the specific level of oxygen present in the Argon atmosphere and proposes using a getter material, such as heated titanium or zirconium, to bind the oxygen.
  • One participant recommends searching for "oxygen getter" for additional resources and solutions.

Areas of Agreement / Disagreement

Participants present multiple competing views and suggestions for addressing the oxygen contamination issue, with no consensus on a single solution or approach.

Contextual Notes

Participants have not specified the exact level of oxygen contamination, and the effectiveness of proposed solutions remains uncertain. The discussion does not resolve the potential risks associated with using flammable or explosive materials.

Who May Find This Useful

Researchers and practitioners working with clathrate compounds, those involved in glove box operations, and individuals interested in contamination control in inert atmospheres may find this discussion relevant.

AWood16
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I'm working with clathrate compounds in a glove box filled with Argon. My problem is that there always remains a small amount of oxygen in the glove box even after multiple purges. This oxygen binds and makes an oxide layer on my clathrates. I don't know how to avoid this and am trying to find some suggestions. My goal is to achieve a pure clathrate to measure thermodynamic data with and this oxide layer throws all my data off. Thanks!
 
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If this is a pumping problem, have you tried introducing chemicals to absorb or adsorb the remaining oxygen after the argon is sealed in?
 
How much oxygen, or rather what is the level of oxygen in the Ar atmosphere. In such cases, one might use a chemical reaction to bind the oxygen, e.g., a getter such as a heated Ti or Zr metal in the form of a mesh, or one could use cracked ammonia for a reducing atmosphere, but hydrogen is flammable or explosive.
 

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