Wet methods, all of which rely on chemical reactions to get metallic copper ... in contact with solid copper, the metal eagerly donates electrons to the peroxide bond, reducing the bond and ...

Chile’s state copper company Codelco sold $1.5 billion in bonds to help fund record investments needed to retain its status as the world’s biggest producer of the wiring metal.

Acetaldehyde is a vital chemical used in making everything from perfumes to plastics. Today, its production largely relies on ...