Here are a few suggestions:

1. Try adding scrap metal that is more active (see the EMF series in your old
chemistry book) than iron or lead, perhaps zinc, aluminum or magnesium to
displace these heavier (hazardous) metals from solution.

2. Try to use a chelating agent, e.g., sodium EDTA to capture ("chelate") the
metals.  An Industrial water purification company like Kinetico can help.

3. Consider electrowinning (i.e., electroplating) the metals from solution
using a coulometric method (i.e., voltage varies until plating occurs, then
drops in voltage until the next metal plates out, etc.).

Pat Hogue

 ----------
From:  [log in to unmask][SMTP:[log in to unmask]]
Reply To:  TechNet E-Mail Forum.;[log in to unmask]
Sent:  Friday, May 22, 1998 11:05 AM
To:  [log in to unmask]
Subject:  [TN] Crashing iron from solution

I asked about lead, but I also wanted to know how to get iron out of
solution.  Is it possible to selectively remove iron from a solution?

Chris Coon
Borden Chemical
Kent, WA

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