Ying hua Copper Products Co., Ltd.Yinghua focusing on copper material research and manufacture since 1997

Copper and sulfur make copper sulfide when they are combined. The copper must be in the form of a wire, and the sulfur must be in a hot gas form.

Copper sulfide is created through hanging a piece of copper wire in a tube of boiling sulfur. The tube with the suspended copper wire must be clamped at the top and placed on top of a Bunsen burner. The copper wire needs to hang freely without touching the sides of the tube. The sulfur may ignite and become a blue gas, though it more typically will turn into a yellow liquid, then into a black liquid and eventually into a dark gray crystalline solid that is copper sulfide. The clamps on the tube may burn during this process, which is fine, as long as the process is conducted in a fume cupboard.