Product Details: Packaging Details 25Kg Bag Purity 99% Grade Reagent grade CAS Number 7487-94-7 Usage/Application Industrial applications Form Powder Appearance white crystalline powder Molecular Formula HgCl2   Mercury(II) chloride or mercuric chloride (historically "corrosive sublimate") is the chemical compound of mercury and chlorine with the formula HgCl₂. It is white crystalline solid and is a laboratory reagent and a molecular compound that is very toxic to humans.Mercuric chloride is occasionally used to form an amalgam with metals, such as aluminium.