Caluanie Muelear OxidizeChemical, This product is used for crushing precious metals and semiprecious stones in the chemical industry. This facilitates breaking nails with bare hands after a 10-20 second dive. Heavy water changes the properties of the metal, making it brittle. * Firstly, Brand Name: Caluanie * Secondly, Model Number:7439-97-6 * CAS No.:7439-97-6 * Purity: