The copper dioxide then reacts with more oxygen to form copper oxide (Equation 2). Both happen when oxygen in the air interacts with the metal atoms in the presence of water.Ĭopper reacts with oxygen that is in the air, resulting in copper dioxide (Equation 1). The Chemical ReactionĮver ask yourself, “Why does copper turn green?” The formation of patina on copper is similar to the formation of rust on iron. This knowledge will also allow you to influence what color of patina forms, and how fast it will do so. Knowing how copper patina forms will give you a deeper appreciation for the unique patina that appears in your family's history. The shades of patina that form on the surface of a copper furnishing can store the memories of meals, spills, new homes and life changes over the course of centuries.Ĭopper is more than a shiny metal - it is one that can be adorned with beautiful carvings that tell a story. The natural changes that happen to copper objects make them a one-of-a-kind symbol of heritage that's hard to replicate. The beauty of copper is unique among decorative materials because the changes it undergoes are unique to each home and location. Here, you can learn how copper forms patina, copper’s beautiful colors, and everything else in between to ensure that you have a fully-fledged understanding of this amazing, living, breathing material.Ĭopper home furnishings provide an elegant beauty because copper is a “living” metal, meaning it changes color over time. If you are looking for a deep dive into how copper patina is formed and how it can elevate your home, check out this copper patina guide.

Copper furnishings, what else is there to say about them? Well, they are elegant and can instantly transform a living space, but copper is a living metal that changes over time, evolving alongside you, which is why you will see copper develop what is known as a patina.

Sealing patina car finish