Fast Oxygen Absorber: Solutions for Tiago's Project

[tiagobt]

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

 

[Gokul43201]

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.

 

[tiagobt]

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?

 

[Gokul43201]

Definition : http://computing-dictionary.thefreedictionary.com/getter
Brief Discussion : http://www.thevalvepage.com/valvetek/getter/getter.htm

Reference for Titanium gettering : Stout and Gibbons, J. Appl. Phys., 26, 1488 (1955)

Commercially made Ti powders : http://www.sumitomo-ti.co.jp/develop_e/hunmatu.html


Other commercially available getters :
http://www.getters.com/
http://www.getters.com/zir_vana_tita_iron.html


Other references :
http://www.patentstorm.us/patents/5536302.html

 

[Borek]

Pyrogallol solution?