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Date: | Sat, 28 Jan 2006 07:44:40 EST |
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In a message dated 1/27/2006 12:00:48 A.M. Eastern Standard Time,
[log in to unmask] writes:
Your local gas supplier should be able to do provide this information to
you - it's in their interest to be able to sell the stuff to you.
Although your local rules may be slightly different, I'd bet the Caltech
safety precautions listed here are close to what you need to do -
http://www.safety.caltech.edu/manuals/hydrogen.pdf - just sensible stuff
for a flammable gas, like store away from ignition sources, and standard
pressure tank safety, like store in a rack or a gas cabinet and make
sure you have the right regulator for the tank.
Dave
David L. Smith, Ph.D.
Director of Professional Development
Da Vinci Discovery Center, Allentown, PA
One added precaution. Two researchers were killed in Pennsylvania when they
opened the cylinder valve.
Unlike carbon dioxide and most other gases that become colder when they
expand out of the tank, hydrogen gets hotter. It can easily reach it's
auto-ignition temperature and (mixed with air) explode. Always use a regulator and
avoid venting.
The gas property is known as the Joule-Thompson Inversion Temperature. The
effect is an exothermic adiabatic expansion.
Another good source of information about gases are the SafetyGrams at
_www.airproducts.com_ (http://www.airproducts.com) . ... Jim
***********************
James A. Kaufman, Ph.D.
President/CEO
Laboratory Safety Institute (LSI)
192 Worcester Road, Natick MA 01760
508-647-1900 (fax) 508-647-0062
[log in to unmask]
_www.labsafety.org_ (http://www.labsafety.org/)
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