Woods’ Nickel Contamination

Ask an Expert From: Products Finishing, ,

Posted on: 1/1/2005

Our Wood’s nickel strike bath is contaminated with iron.

Question:

Our Wood’s nickel strike bath is contaminated with iron. Will dummy plating of the bath remove the excess iron? If not, what else can you suggest to remove the iron? S. M.

Answer:

Classically, most people did not have much success with dummying Wood’s nickel plating baths. Dummying will slow the build-up of iron but ultimately the plater was faced with removing part of the bath and reconstituting the remainder of the bath. Today, you can set up an anion ion exchange system that cannot only handle the iron but other heavy metals as well. Vendors of ion exchange equipment can be found at www.pfonline.com/suppliers.html.

You should also review your process and see if you can reduce iron build-up by changing your process.

 


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