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Previous by Date: Subject: Re: [DCHAS-L] Perchloric acid spill neutralization and absorption Date: Wednesday, May 8, 2019 at 1:23:56 PM Author: "Stuart, Ralph" <Ralph.Stuart**At_Symbol_Here**KEENE.EDU> |
Next by Date: Subject: Re: [DCHAS-L] Perchloric acid spill neutralization and absorption Date: Wed, 8 May 2019 10:36:10 -0700 Author: Michael T. Kleinman |
Hi Mel!
See attached links for a paper I wrote on the subject and videos.
https://www.flowsciences.com/perchloric-acid-fume-hoods/
A perchloric acid hood is
a very special unit. I would never advise trying to handle this material without proper protection. I'll always be happy to talk with you!
Dr. Bob Haugen
Director of Product and Technology Development
Flow Sciences, Inc.
910 332 4878
Containment Products ¥
Get a Quote/Consultation ¥
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From: ACS Division of Chemical Health and Safety [mailto:DCHAS-L**At_Symbol_Here**PRINCETON.EDU]
On Behalf Of Mel -SmithCharlton
Sent: Wednesday, May 8, 2019 1:15 PM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: [DCHAS-L] Perchloric acid spill neutralization and absorption
Greetings everyone,
we have a researcher who will be using 70%-72% Perchloric acid, he is making a 1:1 mix with Glacial Acetic Acid for the hydrolysis of fish fats. In either case, we have some concerns with this because we do not have a perchloric acid hood
(separate issue). Now, once the mix is made, the Perchloric acid will be approximately 35% to 36%, however, my concern is with the possibility of a spill and the resulting waste from a spill. Neutralization first, yes, but then it is also recommended that
the spill NOT be absorbed with any combustible such as paper towels etc. I have thought perhaps diatomaceous earth, or a combination of neutralizer with diatomaceous earth, collect with standard non-metal dust pan then bag/tag the neutralized waste.
Does anybody have any experience with Perchloric Acid spills, neutralization and absorbents, and if so, what do you use?
thanks!
Melissa Charlton-Smith
MS-OSH/EM, NRCC-CHO
GOMEB & Associates
VP Lab Safety, Chemical Hygiene & Lab Management
Consultant
304-563-6678
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