Message:

<p>[QUOTE=&quot;Kentucky, post: 2699924, member: 33176&quot;]Not quite, I&#039;ll call on [USER=17261]@BadThad[/USER] and any other chemists to back me up on this.&nbsp; I ran into this as a method to clean copper cents even as a wee lad.&nbsp; Doing the &quot;Silver Penny/Gold Penny&quot; experiment with high school kids, this came up again.&nbsp; I always wondered how or why it worked, but was never curious enough to spend much time digging out info.&nbsp; Vinegar is a 5% solution of acetic acid, a weak acid that is only partly ionized.&nbsp; I would assume the role of the salt is to increase the acid strength of the solution so as to allow the acid to function.&nbsp; That being said, ifn you start with clean coins (pretreatment) and remove all trace of salt (posttreatment), there shouldn&#039;t be THEORETICALLY nothing much wrong with the procedure.&nbsp; The devil would be the removal of all the salt, which would lead to enhanced decomposition.[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in