Arsenic is confirmed to sublime directly when heated, alongside iodine, which also sublimates at ambient pressure, producing visible violet vapor and new crystal formations. The discussion highlights that dry ice, while commonly referenced, is not an element. It emphasizes that all substances can sublimate under specific pressure conditions, and encourages the exploration of phase diagrams for elements like water, oxygen, and nitrogen to understand sublimation better. Additionally, recent claims in the US regarding the production of metallic carbon without excessive pressure are noted.
PREREQUISITESChemists, materials scientists, and students interested in phase transitions and the properties of elements, particularly those studying sublimation phenomena.
Dry ice is not an element. Otherwise, all substances can sublimate: it is just a question of pressure.Prins said:I know that Arsenic sublimes directly when heated. So I want to know which other elements like this sublimates on heating throughout the periodic table. I also know dry ice.