Kinetic Study of Formate Compounds Developed on Copper in the Presence of Formic Acid Vapor

"Ant-nest" corrosion is a specific type of premature failure of copper tubes used in air-conditioning units causing the loss of refrigerant liquid and consequent environmental pollution. It is known that attack requires the simultaneous presence of moisture, oxygen, and a corrodent, usually formic acid. This type of corrosion occurs in thin-walled copper pipes, especially when copper is deoxidized high residual phosphorus. A study has been made...