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Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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Pyro Copper Analysis

I have to install and control a pyrophosphate copper. Everyone says it is difficult to control so I would like some help. In particular how does one determine the pyrophosphate content? What information can be gained from the Hull cell? I anticipate no contamination in practice.

Nick Clatworthy
Plating shop employee - Whitstable, Kent, United Kingdom
2007

I have seen pyrophosphate analyzed by IC/HPLC before, so give that a try.

Terry Tomt
- Auburn, Washington
2007

Thanks but I do not have IC nor HPLC, my company is small to justify even a cheap one. I only have wet methods available. I wondered whether a Hull cell could give enough information. I also wondered whether I could replace all cations with hydrogen on a cation exchange resin and then titrate the pyrophosphate through its pH7 buffer. Any ideas would be very welcome.
Nick

Nick Clatworthy
- Whitstable, Kent, UK
2007

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