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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 will not stay in solution if the pH approaches neutral after dilution. Good luck.

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

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