Mercury(II) perchlorate is an inorganic chemical compound with the formula Hg(ClO4)2·nH2O, where n can range from 0 to 6. The anhydrous and hydrates are all toxic, water-soluble, and hygroscopic white solids.
The compounds of every Wikipedia article carrying a Chembox or a Drugbox, refreshed daily, with the values their infoboxes give. The pages need JavaScript; the API does not.