I’ve used one pound (gas weight)
containers of arsine and phosphine in a synthesis research lab. As I recall,
these containers were about 10 liters in overall volume and fit nicely in a
fume hood.
In regards to the argument that ‘there
should be dedicated gas storage hoods whenever toxic gases such as arsine and
phosphine are used’, this isn’t practical for university research
labs in which the toxic gas may only be used for a relatively short period of
time. Putting the small (but larger than a lecture bottle) in the hood makes
much more sense that having it outside of the hood. The arsine and phosphine
were always transferred using Schlenk line techniques.
John Nail
Professor of Chemistry
From:
Sent: Wednesday,
To:
Subject: [
Please
excuse me if these questions about cylinders storage in laboratories hoods
had been circulating with this group before.
1.
Have you been able to use gas
cylinders larger than lecture bottle size inside a chemical fume hood?.
2.
If larger gas cylinders in
chemical fume hoods are used, how exactly have they been used?
3.
If you have not used larger
gas cylinders in chemical fume hoods, is it only due to NFPA 45 or another
reason?
Any thoughts you have will be appreciated. Thank you
and Happy Holidays season!
Best wishes,
Yung Morgan, MsPH
Laboratory Safety
Industrial Hygiene Services
Environmental Health and Safety
117
UMASS,
phone (413) 545-2682
Fax (413) 545-2600
email : pmorgan**At_Symbol_Here**ehs.umass.edu
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