Rhodonotype

Based on the formation of the Fe3+/thiocyanate complex, which makes the image red/orange. The yellow part remains from the ferric ammonium citrate. Turning is not possible since the complex is soluble in water. I could not find an equivalent in the literature, so I gave it a name. The name comes from the Greek name for thiocyanate: rhodanurium. (Envelope Soleau 2026 - Stéphane Corbé)