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Previous by Date: Subject: Re: [DCHAS-L] Old Perchloric Spill-Wooden Cabinet Date: Friday, September 11, 2020 at 2:14:56 PM Author: John Callen <jbcallen**At_Symbol_Here**GMAIL.COM> |
Next by Date: Subject: Re: [DCHAS-L] Old Perchloric Spill-Wooden Cabinet Date: Fri, 11 Sep 2020 14:53:07 -0400 Author: Monique Wilhelm |
Hi Nora Dunkel!
Wood powder + Perchloric Acid = Bazooka Fuel
Colorado School of Mines had similar issue years ago.
Dr. Bob Haugen
Director of Product and Technology Development
Flow Sciences, Inc.
910 332 4878
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From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
On Behalf Of Nora Dunkel
Sent: Friday, September 11, 2020 1:58 PM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Subject: [DCHAS-L] Old Perchloric Spill-Wooden Cabinet
Hello all,
What is the best way to deal with a perchloric acid spill on wood, when the spill occurred several months ago?
A biology faculty member recently retired and his lab space was assigned to another biologist. When the new PI moved into the lab, she discovered purple splash marks on a wooden cabinet. Apparently, the previous PI had spilled some concentrated
perchloric acid (70%) and the acid stained the wood. Nobody is sure exactly when the spill occurred—sometime between October 2018 and February 2020.
Besides the risk of spontaneous fire, what other hazards do these doors pose? Should the doors be disposed of as hazardous waste? If so, what hazards should the waste hauler and I consider? The cabinet doors will need to be removed to
dispose of them; do they need to be treated as potentially explosive? How should they be stored until our next waste pickup?
A photo of the cabinet is here:
https://websteru-my.sharepoint.com/:i:/g/personal/noradunkel51_webster_edu/EQWTp-1gsb9Om9_2J0S82O0BeJAMAFe-lao45vMMYQ77Gg?e=bZFZPS
Thanks for your help!
Nora
Nora Dunkel
Chemical Safety Officer
Webster University
Browning Hall 314
314-246-2244 (office)
661-348-1445 (cell)
noradunkel51**At_Symbol_Here**webster.edu
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