Rhodans

Rhodans is a term that can refer to several related concepts, primarily in the context of chemistry and astronomy. In chemistry, "rhodan" or "rhodanate" is an older term for thiocyanate, which is an anion with the chemical formula [SCN]. Thiocyanates are a class of chemical compounds containing the thiocyanate ion. They are often used as analytical reagents and in various industrial processes. For example, ammonium thiocyanate is used in textile manufacturing and as a herbicide. Potassium thiocyanate is used in dyeing and printing fabrics and as a precursor in chemical synthesis.

In astronomy, the term "Rhodan" might appear in older or specialized literature, potentially referring to celestial objects or phenomena, though it is not a widely recognized or standard astronomical term today. It is possible that "Rhodan" could be a transliteration from another language or a historical designation that has since been superseded by more current nomenclature. Without further context, its specific astronomical meaning remains ambiguous. The general chemical meaning related to thiocyanates is the most common and established usage of the term "rhodan."