From: "Buczynski, Michael" <Michael.Buczynski**At_Symbol_Here**CHURCHDWIGHT.COM>
Subject: Re: [DCHAS-L] EDTA in cleanup of aqueous radioisotope solution
Date: April 15, 2013 4:33:58 PM EDT
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: <81517D60279DA14B9C4EB0E41FBFA68712B0C918**At_Symbol_Here**>

EDTA is often added to a cleaning solution(laundry detergent) to help tie up hard water metals and minerals were you to use a detergent without EDTA for laundry in areas that have hard water (iron) clothes would look dirty after the wash

-----Original Message-----
From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Strode, Kyle
Sent: Monday, April 15, 2013 1:32 PM
Subject: [DCHAS-L] EDTA in cleanup of aqueous radioisotope solution

I'm teaching a unit on EDTA and its myriad uses in chemistry. I read somewhere about why EDTA is often present in the cleaning solution used to sponge up spills of low-level radioactive aqueous solutions. Two questions:
1) How/why does EDTA enhance the cleanup from a chemical perspective? I'm sure it has to do with the high Kf value for complexation, but I'd love a confirmation.
2) What is done with the contaminated solution after sponging off the area?
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