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2,3,6-Trichlorobenzoic acid is a post-emergent herbicide. [1] Its formula is C 7 H 3 Cl 3 O 2. In the United States, it has been cancelled for use as an active ingredient in herbicide mixtures and is no longer sold in herbicidal products. [1] It was sold in formulations under a wide variety of trade names, including Benzak and Trysben. [3]
[1] [2] For many centuries, it was the most sought-after goal in alchemy. The philosopher's stone was the central symbol of the mystical terminology of alchemy, symbolizing perfection at its finest, divine illumination, and heavenly bliss. Efforts to discover the philosopher's stone were known as the Magnum Opus ("Great Work"). [3]
[6] Various alchemical documents were directly or indirectly used to justify these stages. The Tabula Smaragdina is the oldest document [7] said to provide a "recipe". Others include the Mutus Liber, the twelve keys of Basil Valentine, the emblems of Steffan Michelspacher, and the twelve gates of George Ripley. [8]
Must be a defining trait – Characters with access to vast powers (such as magical spells, advanced technology and genetic engineering) who are theoretically capable of this superhuman feature or ability – but who have neither made regular use nor provided a notable example of this extraordinary or supernatural feat – are not listed here.
The term transmutation dates back to alchemy.Alchemists pursued the philosopher's stone, capable of chrysopoeia – the transformation of base metals into gold. [3] While alchemists often understood chrysopoeia as a metaphor for a mystical or religious process, some practitioners adopted a literal interpretation and tried to make gold through physical experimentation.
Depiction of Sedziwój performing a transmutation for Sigismund III by Jan Matejko, 1867. Projection was the ultimate goal of Western alchemy.Once the philosopher's stone or powder of projection had been created, the process of projection would be used to transmute a lesser substance into a higher form; often lead into gold.
Dimensional transmutation, a physical mechanism providing a linkage between a dimensionless parameter and a dimensionful parameter; Nuclear transmutation, the conversion of a chemical element or isotope into another chemical element or isotope
The word was used in the title of a brief alchemical work, the Chrysopoeia of Cleopatra attributed to Cleopatra the Alchemist, which was probably written in the first centuries of the Christian era, but which is first found on a single leaf in a tenth-to-eleventh century manuscript in the Biblioteca Marciana, Venice, MS Marciana gr. Z. 299. [2]