Black anti-static foam corrosion
drlegendre at gmail.com
Sat Dec 3 20:51:43 CST 2016
Interesting find, thanks for posting this. I've seen this as well. with a
batch of old ICs which had been stored (in black foam) for some 20-30
years. The leads kind of just stayed behind in the foam..
My assumption was that the foam was simply hygroscopic, and held enough
atmospheric moisture & pollutants to foster corrosion.
On Sat, Dec 3, 2016 at 9:06 AM, Al Kossow <aek at bitsavers.org> wrote:
> I was curious what the compound is that corrodes IC leads in old black
> anti-static foam
> adipic acid
> and google for polyurethane and adipic acid
> Corrosion on Metallic Tokens Stored in Polyurethane Foam
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