Letter 34043

Trivalent chrome bath purification  

+++++

Is trivalent chrome use on the rise? I am trying to immobilize an inexpensive ligand to remove divalent contaminants from a trivalent chrome plating bath. Can someone help me with typical contaminant loads? Typical bath volumes? Level of divalents that create the need to replace baths?

Juzer Jangbarwala
Catalyx, Inc. - Brea, CA, USA

Tri valent chromates are very common. The shop I work in uses them almost exclusively. They are very picky, they like to develop problems out of nowhere.

Joe Avino
- Allegan, MI, USA

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