Talk:Thiourea
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synthesis of 3-phenylpropionyl thiourea
[edit] Silver Dip
I have just bought a jar of silver dip (mentioned as TarnX in the article - presumably a trade name on the American side of the Atlantic) - a solution used to clean sulphide tarnish off silver. I was curious about the active ingredient, given as thiourea. This would appear to be a significant use for thiourea, for the public at least, if not for industry. Could someone add a few lines to this article about what reaction is going on to clean the silver, and why, if you leave the article in the dip too long, it goes blacker than it started! I should be most appreciative. --King Hildebrand 16:15, 28 August 2007 (UTC)
