Re: O2 H2O (fwd)

["Evgeny Maev" <maev@pnpi.spb.ru>]

 Dear Peter,

 During last two weeks we tried to understand,
 what we know about H2+O2 mixture.

 Unfortunately, our knowledge is very limited:

 V. Ganza performed a lot of studies during last two years
 with different type of the mixture and conditions.
 The basically it was done for stainless steel vessel at room
 temperature and for concentrations of O2 from 1- 30 ppm.
 The conclusions are:
 The concentration O2 in hydrogen is decreased with
 rate less than 10% per day and depends from inner
 surface of the vessel and how it was prepared- heating,
 pumping etc.
 We have not information, what happend with O2 and
 think that the most part of O2 transforms to H20, but
 we did not check it.

 Now we have plan to continue this study with our
 new humidity sensor.

 It is all that we can tell at that moment.

 With best regards,
                    Volodja and Evgeny






>
> Dear Evgeny,
>
> We still have the problem that our oxygen tranfer rate
> is not consistent with Francoise's measurement.
>
> The chemists always mention that O2 transforms to H2O.
> What is the evidence and literature on that?
> If this is a significant effect, one could speculate
> that Francoise lost part of her original O2 to water,
> which then was trapped to the walls.
>
> On the other hand the literature tells us
> that, in the absence of catalytic surfaces,
> O2 is basically stable at 300K. What is knows about
> stainless steel and Al surfaces? Are they catalytic surfaces
> at room temperature?
>
> Please discuss with the experts and send us some references.
>
> Greetings
>
> Peter
>


-- 
Dr.Evgeny M. Maev
Serious scientist
High Energy Physics Department (HEPD)
Petersburg Nuclear Physics Institute (PNPI) - http://www.pnpi.spb.ru/
Tel.: +7(81271)46191
Fax.: +7(81271)30010
Post Address: Russia, 188300, Gatchina,
Leningrad district, Petersburg Nuclear Physics Institut (PNPI)