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Baruch Sterman (Hebrew: ברוך סטרמן) is an American-born Israeli physicist, technologist, and writer. [1] [2] [3]Sterman has carried out research, written, and lectured on the topic of Tekhelet, the ancient Biblical Blue dye, and has helped reconstruct the manufacturing process in accordance with the principles of Jewish law.
The dye is made from phenol, first oxidising it with oxalic acid and sulfuric acid to make a red substance called rosolic acid. By treating this with ammonia, a dye called red coralline or péonine was made. When reacted with aniline, the blue azuline was produced. This was invented by Jules Persoz in Paris.
Brilliant blue FCF (Blue 1) is a synthetic organic compound used primarily as a blue colorant for processed foods, medications, dietary supplements, and cosmetics. [1] It is classified as a triarylmethane dye and is known under various names, such as FD&C Blue No. 1 or acid blue 9.
Therefore, archeologists have confirmed Hexaplex trunculus as the species used to create the purple-blue dye; large numbers of shells were recovered from inside ancient live-storage chambers that were used for harvesting. Apparently, 10 to 12,000 shells yielded only one gram of dye. Because of this, the dye was highly prized.
In another contemporary review for The New York Times, critic Bosley Crowther wrote: "[A]fter sitting dutifully through it, I can tell you what a bobo is. It's a booboo – and that goes not only for the title character, played by a strangely lackluster Mr. Sellers, but also for the film.
FD&C Blue No. 1 Acid blue 9 Food blue 2 42090 triarylethlamine 3844-45-9: Brilliant cresyl blue: Cresyl blue BBS Basic dye 51010 oxazin 81029-05-2: Brilliant green: Malachite green G Zeylonka Basic green 1 42040 triarylmethane 633-03-4: Bromsulfthalein: BSP triarylmethane 71-67-0: Bromocresol green: BCG triarylmethane 76-60-8: Bromocresol ...
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Blue pigments are natural or synthetic materials, usually made from minerals and insoluble with water, used to make the blue colors in painting and other arts. The raw material of the earliest blue pigment was lapis lazuli from mines in Afghanistan, that was refined into the pigment ultramarine .