[TheForge] removing silver from the back of a mirror.

[Andy Vida]

"terry l. ridder" wrote:
> 
> hello;
> 
> now for the problem. the mirror is etched from the back. many of the
> etchings are fine in detail there is no way for me to remove the layers
> using a 3m stripper pad. so what would be a safe ( do not want to effect
> the glass in any manner, i.e. etch the glass or scratch the glass) way
> to remove the protective layers from these fine details.

	I know that nitric acid will etch away silver.  As far as I know
	it will not attack the glass.  I believe it produce silver nitrate,
	though not certain.

> another note of interest is that when you look at the mirror on edge
> there is no greenish tint to the glass, it is clear. i found that
> interesting.

	Typical of that sort of class.  There is a nae for it, but I
	cannot dredge it up from memory just now.  Soda glass, maybe?