To break down mercuric sulfide during roasting, the ore must typically be heated above what temperature threshold?
Answer
580°C
The rock containing cinnabar is heated to a high temperature, usually above 580°C (1076°F), causing the HgS to break down and release gaseous elemental mercury.
Related Questions
How often does elemental mercury appear in a pure, native metallic form in the Earth’s crust?What mineral serves as the principal ore for mercury extraction globally?What is the characteristic color associated with the mineral cinnabar?Approximately what percentage of cinnabar’s mass is mercury?Cinnabar deposits are strongly associated with what type of geological activity?In the mineral Tiemannite, what element is mercury bound with instead of sulfur?Which mercury sulfide mineral typically crystallizes in the isometric system?Mercury ores are generally found in deposits related to what geological process?What is the standard historical method used to recover mercury from cinnabar ore?To break down mercuric sulfide during roasting, the ore must typically be heated above what temperature threshold?In which common accessory mineral might trace amounts of mercury substitute for iron atoms?What mineral features mercury bound with tellurium?