[Histonet] formalin neutralization

Podawiltz, Thomas tpodawiltz <@t> lrgh.org
Tue Sep 29 11:27:23 CDT 2009

What does your state require? New Hampshire requires to test with the test kit and if at zero we can drain dispose. The state also requires us to keep our test records for five years.

-----Original Message-----
From: histonet-bounces <@t> lists.utsouthwestern.edu [mailto:histonet-bounces <@t> lists.utsouthwestern.edu] On Behalf Of Stephanie Weaver
Sent: Tuesday, September 29, 2009 11:25 AM
To: histonet post
Subject: [Histonet] formalin neutralization

For those who are better at chemistry than I am:

I have just purchased some Formalex Green to neutralize our waste 10% formalin for safe drain disposal.  I noticed that I can also purchase a "test kit" that will tell me if the aldehydes are safely neutralized.  Instead of that, couldn't I just add a drop of Schiff's reagent to the final product, and that would indicate if there are any unreacted aldehydes?

Thank you in advance,

Stephanie Weaver
Texas Veterinary Diagnostic Lab

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