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Date: | Mon, 1 Mar 2010 09:09:11 -0500 |
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Thanks for all the great answers.
Rudy hit it right on the money. We have boards that are oxidized black
and I was contending it was a silver finish not tin. I expected tin to
have a yellow gold tarnish going to grey. Rudy said you can't tell the
base metal by the color (colour) of the oxide and Bev gives the
technical reason for that.
I know we were dealing with a "redox" reaction but was looking for the
practical answer.
TinTin - I had to laugh.
Sincerely,
Paul Reid
Program Coordinator
PWB Interconnect Solutions Inc.
235 Stafford Rd., West, Unit 103
Nepean, Ontario
Canada, K2H 9C1
613 596 4244 ext. 229
Skype paul_reid_pwb
[log in to unmask] <mailto:[log in to unmask]>
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Paul Reid
Sent: February 26, 2010 4:28 PM
To: [log in to unmask]
Subject: [TN] Colour of Oxidized Tin
Hi Everyone,
If we have oxidized tin what colour would you expect tin oxidation to
be.
I thought silver would oxidize black while tin might be more yellow or
gold.
Notice I used the word colour because I am in Canada.
Sincerely,
Paul Reid
Program Coordinator
PWB Interconnect Solutions Inc.
235 Stafford Rd., West, Unit 103
Nepean, Ontario
Canada, K2H 9C1
613 596 4244 ext. 229
Skype paul_reid_pwb
[log in to unmask] <mailto:[log in to unmask]>
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