https://www.thevespiary.org/rhodium/Rhodium/chemistry/mercurychloride.html (https://www.thevespiary.org/rhodium/Rhodium/chemistry/mercurychloride.html)
then leave it out in sunlight to convert to Mercuric Chloride(HgCl2) rather then going the HgSO4 route? and if so how much sun light would covert a few grams of Mercurous Chloride?