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Subject:	ASS: Green Contamination
From:	Maurice Dore * <[log in to unmask]>
Date:	Mon, 11 Nov 96 10:06:00 GMT
Content-Type:	text/plain
Parts/Attachments:	text/plain (21 lines)


Hi
I have come across a sample of brass pins (electroplated with Nickel to  2.5 
microns and then a Tin/Lead 60/40 5 micron plating) have a green 
contamination at the ends and where they are inserted into a component.
Can anyone remember from their Chemistry whether this green contamination is 
a Copper Oxide/Sulphide or a Nickel based salt?

Is it ok to wash with IPA and replate the pins?

Thanks in advance.

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