Excellent Shelf Life of Peracetic Acid
Evonik's peracetic acid products are sufficiently stabilized. If stored properly, they can be kept for an extended period of time without notable loss of content.
Rapid Decomposition of Diluted Peracetic Acid
When stable commercial peracetic acid is diluted with tap or other types of water, it undergoes rapid hydrolysis and decomposition. This process is further accelerated by high temperatures and the presence of impurities, particularly heavy metals like iron, copper, and manganese.
Storage and Dilution Recommendations
To maintain the stability of peracetic acid, it should be stored under cool conditions. If dilution is necessary, it should be done with appropriate water immediately before application to prevent decomposition and the associated loss of content.
Hydrolysis Products and Stability
The hydrolysis of peracetic acid upon dilution results in the formation of acetic acid and hydrogen peroxide, establishing a new equilibrium among these components and water. These products are unstable and cannot be stored or transported effectively.