Re: Nitric Acid

You can get Nitric Acid from Rembrandt Graphic Arts. Here is the uel:
http://www.rembrandtgraphicarts.com/07_rga_cat.html#Anchor-MORDANTS-49575
Hope this helps
Rusty

> Hi:
>
> Nitric acid is kind of nasty. I've used tannic acid to tone cyanotypes
>
> On Thu, 24 Oct 2002, dennis vinciguerra wrote:
>
> > Hello all,
> > Certain cyanotype images work very well in blue, some in brown but then
> > there are those that need to be black. The formula I have calls for
> nitric
> > acid but I'm not having any luck locating it. Anyone have either a source
> > or another black toning formula ?
> >
> > Thank you,
> > Dennis
>
Received on Fri Oct 25 15:41:25 2002