Fast Oxygen Absorber: Solutions for Tiago's Project

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Discussion Overview

The discussion centers around finding a suitable substance or process for a medical equipment project aimed at absorbing oxygen at a rate of 200-300 ml per minute, without using explosive materials. Participants explore various materials and methods for oxygen absorption.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Tiago is considering using iron powder for oxygen absorption but doubts the oxidation reaction rate would be appropriate.
  • One participant suggests looking into standard bulk getters like barium or titanium, noting that the gettering rate can be tuned by fixing the mass and temperature of the getter.
  • Tiago expresses a need for more information on bulk getters, indicating unfamiliarity with the term and seeking resources for further research.
  • Another participant provides links to definitions, discussions, and references related to getters, including commercially available titanium powders and other getters.
  • A suggestion is made to consider using a pyrogallol solution as a potential option for oxygen absorption.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the best approach or material for oxygen absorption, with multiple suggestions and ongoing inquiries about the effectiveness and availability of different substances.

Contextual Notes

There is a lack of detailed information on the specific rates of absorption for the suggested materials, and the discussion does not clarify the conditions under which these materials would be effective.

Who May Find This Useful

Individuals interested in materials science, medical equipment design, or gas absorption technologies may find this discussion relevant.

tiagobt
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I am working on a project of a medical equipment which is supposed to absorb oxygen at a rate similar to the human body. I am looking for a process or a substance that would absorb about 200-300 ml of oxygen per minute. I can't use fire or anything that explodes. I was thinking about iron powder, but I don't think the oxydation reaction would have the correct rate. Does anyone know if iron is OK? Any other suggestions?

Thanks,

Tiago
 
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Have you looked into standar bulk getters like barium or titanium ? By fixing the mass of the getter and its temperature, you can tune the gettering rate.
 
Thanks a lot for the help. I really think bulk getters are what I need, though I'm not familiar with the term. I've googled "bulk getters", but I didn't find a lot of information that could help me. Do you know any websites or books with information about bulk getters or where to buy them?
 
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Pyrogallol solution?
 

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