Light Sensitivity of FAO, Carbon Arc Exposure etc.

OK
Here are some more beginners questions to go the still
unanswered-ones below:

How are the light sensitive Iron salts for use in alt.
Photo. (eg. FAO) best purchased, sold and stored?

     In White or Brown Glass?

     In White or Brown plastic bottles?

The main question here is...
Is the light sensitivity of Iron processes reversible?

Unanswered Old Questions:
1.
I have an almost unused carbon arc lamp boxed up in
another room... can this be used and if so, would the
results be comparable to other more common forms of UV
lighting for Iron Process exposures?

2.
Can the hexa-hydrate FAO also be used?

4.
How do Ferric Ammonium Oxalate and Ferric Ammonium Citrate
compare in activity?

Can they be used interchangeably?

Thank you in advance,

Ray

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Received on Tue Aug 17 02:07:41 2004