From: Loris Medici (lorism@tnn.net)
Date: 07/03/03-04:44:35 AM Z
Hi again,
> -----Original Message-----
> From: Loris Medici [mailto:lorism@tnn.net]
> Sent: Wednesday, July 02, 2003 4:07 PM
> To: alt-photo-process-l@sask.usask.ca
> Subject: A newcomer into the alt. process world...
>
>
> I'm about to start making cyanotypes (waiting the hinged back
> contact printing frame on its way to me) and AFAIK, I'm the
> first one trying this in my area (Istanbul, Turkey).
>
> I will use negatives from my 4x5" pinhole camera (film: HP5+)
> and also plan to enlarge 35mm and 6x6 negatives (mostly HP5+
> and FP4+) on lith film using the procedure described at the
> following documents:
> * http://216.195.4.24/alternativephotography/articles/art001.html
> * http://rmp.opusis.com/documents/reversal4.pdf
I prepared the [5% sulphuric acid + 5% potassium dichromate] bleach
described in the above documents. I poured the concentrated (it is used
1 + 9) bleach solution into a 1lt brown bottle. My questions are:
1) Can 5% solution of sulphuric acid do harm to the glass? Is it all
right to store it in a glass bottle?
2) The concentrated sulphuric acid is stored in a "plastic" bottle. Is
it OK to store such a strong acid in plastic bottles?
Thank you in advance.
Loris.
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