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topic 46433

How to make a water solution of zinc phosphate


(2007)

Hi,
I need to dissove a technical powder of zinc phosphate (45% zinc). I made the first dilutions in HCl acid, which seems to work fine. But as soon as I add distilled water to make a further dilution, the zinc percipitate. I need to keep the zinc in solution.
any ideas?

Adel Jacobs
laboratory analyst - South Africa


(2007)

What is the pH before and after dilution, Adel? The zinc cannot stay in solution if the pH approaches neutral after dilution. Good luck.

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey



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