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Archive for September 20th, 2009

Forgotten Alkaline D-cell: Corrosion!

Alkaline D-cell corrosion

Alkaline D-cell corrosion

Found this toxic spill while I was looking for a gadget on another shelf: it seems I left an alkaline D cell standing on my electronics parts & tools carousel for much too long.

Amazingly, although the cell’s leakage blistered the paint pretty badly, it didn’t affect the steel carousel!

I wiped most of the crud and dead paint off, then applied white vinegar (which is essentially dilute acetic acid) to neutralize the cell’s potassium hydroxide. The grabber tool sticking¬† out from between the boxes had a pretty good dose of corrosion up the side, but soaking it in vinegar (wow, the bubbles!) removed that and a shot of penetrating oil expelled the rinse water.

It’s definitely not Duracell’s fault: the cell had a best-used-by date in 1997.

Memo to Self: throw ’em out!

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