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Anonymous Mon 07 Sep 2020 02:45:46 No.11238440 View View Report

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>>11238437
>The only mention I have found of any Dicyanine B in any sort of authoritative source is in Oscar Bagnall's book The Origin and Properties of the Human Aura. [5] But beyond that, I have found no evidence that a B isomer has ever been produced. It certainly wasn't commercially important in 1924. Chemical Expert shows no mention of it, but it does show a number of sources for Dicyanine A.

>The Pinacyanols are a distinct set of dyes, and are clearly not Dicyanine B. In the 1924 CI, pinacyanol is listed as dyestuff 808, while Dicyanine A is listed as dyestuff 811. Pinacyanol was made by MLB, but also by Illford as Sensitol Red, and by other manufacturers as Quinaldine Blue, which indicates its greater commercial importance at the time. [6] It is in fact still of some importance as a photographic sensitizer. Pinacyanol chloride is an important medical drug.

>The notion that Dicyanine A requires any sort of clearance to obtain is silly. You do have to have the credentials to purchase chemicals. I solved that by forming a small commercial laboratory to pursue this research. When I used ChemExper to solicit a bid on my last purchase of Dicyanine A in August, I had a bid from Fisher Scientific in 2 hours. The dye cost was $116 / gram, $157 / gram delivered, which included a fee for the cooler + ice packs it came in. A quote for $237 / gram is a ripoff.

>Pinacyanol is far less costly, and is considerably more stable. I obtained a gram of pinacyanol bromide from Arcos Organics / Sigma Aldrich this past summer for $87 / gram. The bromide solved in methanol, ethanol, or isopropanol works well in Kilner goggles, and can be cosolved into multiple kinds of epoxy (that's a valuable clue that cost me months of effort and thousands of dollars, so run with it!)

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