Before revision: Application Areas: Architecture - Finishes – patinaGlossary of copper terms, Copper Development Association (UK): In clean air rural environments, the patina is created by the slow chemical reaction of copper with carbon dioxide and water, producing a basic copper carbonate.
After revision: Glossary of copper terms, Copper Development Association (UK): In clean air rural environments, the patina is created by the slow chemical reaction of copper with carbon dioxide and water, producing a basic copper carbonate.