Date: Thu, 19 Jul 2007 14:48:12 -0400
Reply-To: "Lazarski, Peter M." <Peter.Lazarski**At_Symbol_Here**US.NGRID.COM>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: "Lazarski, Peter M." <Peter.Lazarski**At_Symbol_Here**US.NGRID.COM>
Subject: Re: formaldehyde and bleach
In-Reply-To: A

Of all the organic compounds, aldehydes as a class are the most easily oxidized being converted into carboxylic acids; some texts refer to the use of potassium permanganate, potassium dichromate. Tollens' reagent contains the silver ammonia ion, Ag(NH3)2+, which oxidizes the aldehyde and reduces the silver ion to free silver. The Merck Index says that formaldehyde solution (37% by wt formaldehyde) in the air is slowly oxidized to formic acid. Aqueous solutions of household bleach contain ~5.25% NaClO (sodium hypochlorite). If the reaction doesn't require heat to complete and will go to completion with an excess of water, you'd need at least 8X as much bleach as formalin. It's probably less expensive to simply dispose of as hazardous material. The information contained in this e-mail message and any attachments may be confidential. It is intended only for the use of the individual or entities named above. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail at the originating address. Peter Lazarski National Grid USA Chemical Laboratory, Bldg. 1 7437 Henry Clay Blvd. Liverpool, NY 13088 (315)460-2114 -----Original Message----- From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**LIST.UVM.EDU] On Behalf Of Debbie Decker Sent: Thursday, July 19, 2007 1:56 PM To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU Subject: [DCHAS-L] formaldehyde and bleach Quick question: Does bleach "inactivate" formaldehyde so that the resultant can go down the drain? Yes yes - I know formaldehyde is a hazardous waste, blah blah, and treatment isn't allowed, yada yada. I have to head off this biologist before she does any more "chemistry." Thanks, Debbie ---------------------- Debbie Decker EH&S UCDavis (530)754-7964 FAX (530)752-4527 dmdecker**At_Symbol_Here** Co-Conspirator to Make the World A Better Place -- Visit and join the conspiracy Birkett's hypothesis: "Any chemical reaction that proceeds smoothly under normal conditions, can proceed violently in the presence of an idiot." ******************************************************************************** This e-mail and any files transmitted with it, are confidential to National Grid and are intended solely for the use of the individual or entity to whom they are addressed. If you have received this e-mail in error, please reply to this message and let the sender know.

Previous post   |  Top of Page   |   Next post

The content of this page reflects the personal opinion(s) of the author(s) only, not the American Chemical Society, ILPI, Safety Emporium, or any other party. Use of any information on this page is at the reader's own risk. Unauthorized reproduction of these materials is prohibited. Send questions/comments about the archive to
The maintenance and hosting of the DCHAS-L archive is provided through the generous support of Safety Emporium.