Hexasulfur is an inorganic chemical with the chemical formula . This allotrope of sulfur was first prepared by M. R. Engel in 1891 by treating thiosulfate with HCl. Hexasulfur is orange-red and forms a rhombohedral crystal. It is also called cyclo-, ρ-sulfur, ε-sulfur, Engel's sulfur, and Aten's sulfur.
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Hexasulfur is an inorganic chemical with the chemical formula . This allotrope of sulfur was first prepared by M. R. Engel in 1891 by treating thiosulfate with HCl. Hexasulfur is orange-red and forms a rhombohedral crystal. It is also called cyclo-, ρ-sulfur, ε-sulfur, Engel's sulfur, and Aten's sulfur.
== Nomenclature ==
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).