From:
Clark, Eric J <CLARKEJ**At_Symbol_Here**LATTC.EDU>
Subject:
Re: [DCHAS-L] Lab incident Perrysburg, OH
Date:
Dec 4, 2024 21:43 UTC
Reply-To:
ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Message-ID:
<BY5PR03MB52667E9DCEF415AFE2EDD980B6372**At_Symbol_Here**BY5PR03MB5266.namprd03.prod.outlook.com>
In-Reply-To:
<IA1PR11MB7245925D822C8C95D731C37DFB362**At_Symbol_Here**IA1PR11MB7245.namprd11.prod.outlook.com>
Laboratory Urban Legend describes mid-late-1800s General Chemistry titration lectures where the pink endpoint of phenolphthalein was demonstrated using HCl and NaOH. In that century a student was asked to taste the pink neutralized solution
and describe the salty taste. And the lecturer knowingly and for entertainment purposes encouraged others to try – so that they would almost immediately have an extreme case of diarrhea. Later phenolphthalein was used as the main ingredient of ExLax for
most of the 20th century until it was reformulated and removed from the product in 1997 after a study found that it increased the risk of tumors in rodents.
Eric
Los Angeles Trade Technical College
400 West Washington Blvd.
Los Angeles CA 90015
From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
On Behalf Of Kleinman, Michael
Sent: Tuesday, December 3, 2024 2:10 PM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Subject: Re: [DCHAS-L] Lab incident Perrysburg, OH
No one should be mouth pipetting anything.
Department of Environmental and
College of Health Sciences
University of California, Irvine
One would think that the teacher would know the instant they opened the bottle that they had the wrong thing!
***********************************************
Mary Jo Ondrechen, Ph.D. [she / elle / ella / yakonkwe]
Professor of Chemistry and Chemical Biology
Principal Investigator, Computational Biology Research Group
Northeastern University
360 Huntington Avenue
Boston, MA 02115 USA
Tel: +1-617-373-2856
Fax: +1-617-373-8795
http://www.northeastern.edu/org/
@MJchemist
***********************************************
Attached is the letter sent to "PHS Families" 25-Nov-24 by Thomas L. Hosler, Superintendent, Perrysburg Schools.
--- For more information about the DCHAS-L e-mail list, contact the Divisional membership chair at
membership**At_Symbol_Here**dchas.org
|
.
|
WARNING - This email originated from outside of the UCI Health email system. Do not click any links and do not open attachments unless you can confirm the sender.
PLEASE FORWARD SUSPICIOUS EMAILS TO:
security**At_Symbol_Here**hs.uci.edu
|
.
|
--- For more information about the DCHAS-L e-mail list, contact the Divisional membership chair at
membership**At_Symbol_Here**dchas.org
--- For more information about the DCHAS-L e-mail list, contact the Divisional membership chair at
membership**At_Symbol_Here**dchas.org
