RE: Mixing of chemicals for disposal

From:"Hagerty, Marjorie A." <>

Jennifer, when you say you combine all your wastes, do you also combine all
special stain waste?



-----Original Message-----
From: Jennifer MacDonald []
Sent: Friday, March 23, 2001 9:41 AM
To: Mike Kirby; Histonet
Subject: Re: Mixing of chemicals for disposal

We have always combined all of our wastes.  The company that hauls our waste
is aware of the combinations and has no problem with it.  The company we
used prior was the same.  We do not add any reagents containing picric acid
to this mixture.  These are taken separately.

Jennifer MacDonald

> Fellow Histonetters.
> In our Organisation, we tend to combine our waste solvents (Ethanol &
> Xylene)with the formalin waste into one drum, and then send it away for
> disposal. I have been informed that this is a "no, no" and that formalin
> should be kept in it's own, as it can form an explosive mixture if
> with the solvents.
> True or false?
> Mike Kirby
> S.A.I.M.R
> Johannesburg
> South Africa.

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