RE: haunted VDB
Don't you have any gold plater near/around you? As I said before it would be less cheap and I add now: far easier and infinitely less dangerous to purchase few grams from them instead of dealing with aqua regia!!! -----Original Message----- From: Joao Ribeiro Globo [mailto:ribeiro.joao@globo.com] Sent: Friday, October 02, 2009 3:57 PM To: alt-photo-process-l@usask.ca Subject: Re: haunted VDB Hi Judy, I'm not sure it is the plastic as some pictures changed and others didn't. I can buy selenium powder here but the cost is hi (higher than silver nitrate) Not to start that argument again but I'm planning producing gold salts using Lyan's method in PF. The thing is I like the brown color and gold will shift it to purple black isn't it? Well, trying is part of the game, who knows I might fall in love when I see it in my hands. Thanks, Joao On 01/10/2009, at 23:07, Judy Seigel wrote: > > I'm wondering if that plastic sleeve the print was stored in was > something you'd used before... There are plastics that simply destroy > photographs. I remember many years ago my mother put all her family > photographs in an album with pages in plastic sleeves, for her > grandchildren... by the time we actually inherited it, just a few > years later, the degradation of the prints was striking -- tho these > were color photos and the chemistry is obviously different. > However, I had some of the same photographs, stored in paper or under > glass, so I could measure how much hers had faded in that relatively > brief time. (If I'd been trying to fade them I couldn't have done > better.) > > As for as selenium toner is concerned, if you can get your hands on > some selenium, that is, the plain chemical itself, you can mix up a > selenium toner without the fixer. I don't remember where I got my > selenium (about 28 years ago), tho of course in those days sale of > chemicals was much more loosey goosey than today... it was also > expensive -- but ounce for ounce of the working solution not all that > terrible.. and MUCH more flexible than KRS. (I never did understand > why they put it in fixer-- tho that's not this e-mail.) > > The old photo books or formularies should have the formula for > selenium toner, or I could probably dig up that old one. However, I'm > wondering what's wrong with just plain gold toner?? (Is this a good > or bad time to buy gold chloride ? -- I don't follow that nowadays, > since gum bi just shrugs off gold. But if memory serves, when the > market is down, so is gold? Whichever, per print toned it's not so > horrendous. (You only tone the successes.) Also, as I recall (tho I > haven't used it lately) the color is lovely. > > Not to mention -- have you noticed galleries stressing the "gold" in > "gold-toned prints"? (Sounds so much better than "selenium toned.") > > Judy
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