lines 91 & 92
(I knew that by rote!)
Since I was 9 I have been interested in the biochemistry of schizophrenia...
I figured it would be best if I could experience it first hand (!)
and I have been waiting a long long time for this!
Autually, this here is nothing more than an afterthought.
I once wrote a paper that dared to suggest that thought itself was a hallucination.
Well, we will be more careful in the future.
That was X-Ray speaking.
HE has multiple personality disorder, not me.
In the words of Herman Hesse,
"Tell her I'm a schizophrenic!".
(I promise, too!)
Ray and his X-Ray
I still have not opened the vials of dyes. But when I do, I will weigh out what you want. I have decided that handeling these dyes merits an analytical balance. I have bid on one on Ebay and the auction ends in 3 days.
I calculate 19 cents per mg as my cost for the dye. I will not try to make a profit here. Just let me know how much you want. There are two dyes, one for green and one for red sensitization.
Bill - good luck on you balance purchasing. They sure are nice to have if you want to measure small amounts.
When you suggested SDA3057 and SDE8006 as spectral sensitization dyes I went ahead and ordered them at your word. Since I offered small samples at my cost to interested parties on this forum, I have received questions as to what, exactly, the dyes are. I receieved no paper information with these dyes and I wonder if you have any written data on these dyes, or if you know their chemical names.
The company has refused to give me any data on these dyes, merely to tell me that they are green sensitizers. By testing, I found that one is a red sensitizer and had this confirmed by Paul Gilman, the Kodak expert on dyes. Sorry I cannot help you with structures. I have one partial ID on the red sensitizer. It is used in Kodachrome film!
They are generically probably cyanine dyes.
I have used both, but since the one marked green is really a red, I have fogged all emulsions eventually when using it due to my trusting nature. (BTW, it is a green sensitizer on Chloride and Bromide emulsions but not on Bromo Iodides due to J aggregate formation.)
Now we both know what Ron knows about these dyes.
I wonder,do you have any sugestions as to other dyes, with published structures , that could be used as green and red sensitizers. I know of several candidates from my studies of the Lippman process and pan holography. But some of these dyes are hard to purchase due to company self imposed rules about selling "hazadous" chemicals to individuals.
I would hate to develope a panchtomatic emulsion, then learn that H.W.Sands has decided to discontinue it.
I ment to adress the last post to Ron. But mabe Kirk has some ideas.