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kwigibow
Posted on Monday, February 9, 2004 - 7:20 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Is there any way to make hydrogen from electrolysis into liquid or gel?
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Simon Quellen Field (Sfield)
Posted on Monday, February 9, 2004 - 8:19 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

That's simple. Just cool it to 20.26 degrees Kelvin.
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kwigibow
Posted on Monday, February 9, 2004 - 8:31 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Simple? I think not.
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Simon Quellen Field (Sfield)
Posted on Monday, February 9, 2004 - 8:39 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

You are confusing simple with easy.
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kwigibow
Posted on Monday, February 9, 2004 - 8:44 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Good point. But how the heck can you get down to that temperature? That would have to be expensive wouldn't it?
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Simon Quellen Field (Sfield)
Posted on Monday, February 9, 2004 - 8:46 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

I am not aware of any inexpensive ways to liquify hydrogen,
or to store the result. What is your application?
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kwigibow
Posted on Monday, February 9, 2004 - 8:53 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

I was thinking of creating some sort of small hydrogen powered model rocket.
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kwigibow
Posted on Tuesday, February 10, 2004 - 3:34 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Have you ever taken one of those cans of air for dusting, turned it upside down and sprayed it? Some sort of chemical liquid comes out. This stuff gets extremely cold (almost burned myself wih it one time)! Could this possibly freeze hydrogen gas down to 20.26 kelvins?
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Simon Quellen Field (Sfield)
Posted on Tuesday, February 10, 2004 - 3:53 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

My guess is that it gets to about 260 kelvins.
Only 240 more to go...
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Anonymous
Posted on Tuesday, February 10, 2004 - 4:45 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

If it got to 20 degrees it would freeze the air as it came out ;-)
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Anonymous
Posted on Tuesday, February 10, 2004 - 4:46 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Wait... They dont say degrees with the kelvin scale do they?
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kwigibow
Posted on Wednesday, February 18, 2004 - 1:01 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

I think they say "kelvins" instead of degrees.
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ABCinventor
Posted on Sunday, November 21, 2004 - 8:00 am:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

i think converting the electrolysis result into some sort of hydrogen compounds which is complicated and in liquid form can solve the whole cooling trouble but we need some sort of molecular decomposer and reconstructor... well one of such compound can be methane but is still in gaseous form...
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Anonymous
 
Posted on Tuesday, March 1, 2005 - 11:27 am:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

ignite it with oxygen.
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Tristan
Unregistered guest
Posted on Saturday, April 9, 2005 - 2:15 am:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

I wonder if there is a way to electrolysis the Hydrogen out of the water. Then suck it into another container and use some dry ice to freeze it. Though I am not sure that is possible and it would be very difficult to do anyway.
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Anonymous
 
Posted on Saturday, April 9, 2005 - 3:21 am:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Dry ice sublimates at 194.65 kelvin's degrees*
Hydrogen boils at 20.268 kalvins*

You couldn't even come close with dry ice. You'd probably need liquid helium (4.22kay)* to do it that way. Be careful, such cold tempertures exposed to the atmosphere can cause liquid oxygen to condense on the surface.

* [All kelvens' stated for maximum annoyance of spelling police]
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Anonymous
Unregistered guest
Posted on Saturday, June 11, 2005 - 5:47 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

How about solid hydrogen?
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Simon Quellen Field (Sfield)
Senior Member
Username: Sfield

Post Number: 488
Registered: 12-2004
Posted on Saturday, June 11, 2005 - 6:23 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

You could use solid hydrogen to liquify gaseous hydrogen,
but what would be the point? Hydrogen melts at 14.01 degrees
Kelvin.
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jaycee (Unregistered Guest)
Unregistered guest
Posted From: 216.170.63.150
Posted on Monday, December 5, 2005 - 4:15 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Here's a practcal use for liquid hydrogen-use it to freeze ice cream! Really! The faster it's frozen, the creamier it tastes.
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Troy (Pharoah)
Intermediate Member
Username: Pharoah

Post Number: 37
Registered: 3-2006
Posted on Friday, March 2, 2007 - 7:13 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

You would get frostbite from such ice cream.

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