Juror 10 erupts in racially motivated vitriol. Brazilwood also gave purple shades with vitriol (sulfuric acid) or potash. The Republican primary was marked by intense vitriol between the candidates. Diethyl ether is simply called "ether", but was once called "sweet oil of vitriol". It was historically known as "white vitriol". Lin Carter called the story "a piece of literary vitriol". Green vitriol is also a useful reagent in the identification of mushrooms. Older names for this compound include blue vitriol, bluestone, vitriol of copper, and Roman vitriol. They were given support slots with The Dandy Warhols and My Vitriol. Other names include "blue stone", "blue vitriol", and "copper vitriol". Ibn Sina focused on its medical uses and different varieties of vitriol.