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Author: Subject: Powdered Zinc Question
ssdd
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[*] posted on 9-5-2008 at 08:03
Powdered Zinc Question


OK so I was recently working on a Zn/MnO2 cell for a lab. But I had an issue, it seems that the powdered zinc is hardening into almost a cement like material.

I am not sure if this is because it is drying out, too fine, or I missed something.

How would you go about keeping the zinc from hardening?

-ssdd




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ScienceGeek
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[*] posted on 9-5-2008 at 08:59


I would add a tiny bit of a hygroscopic salt that wouldn't affect the cell. It's just what came to my mind...



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[*] posted on 9-5-2008 at 17:34


.........I am not sure if this is because it is drying out, too fine, or I missed something.............

Rather it needs drying out. Grind and heat in a shallow dish.
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