Can peracetic acid dissolve zinc?

Does Peracetic Acid Dissolve Zinc?

Yes, peracetic acid can indeed dissolve zinc—and quite effectively. This powerful oxidizing agent, commonly used for disinfection in food processing, healthcare, and water treatment, doesn’t play nicely with certain metals, especially softer ones like zinc.

Zinc is particularly vulnerable to peracetic acid due to its reactivity. When exposed, the metal corrodes rapidly as the acid breaks down its surface. This corrosion isn’t just superficial—it leads to the release of zinc ions into the solution, which can affect both the integrity of the material and the chemical stability of the environment. The same goes for other metals like iron, copper, and brass, all of which degrade quickly when in contact with peracetic acid.

This reactivity is a key consideration in industrial settings. Equipment made from or containing zinc alloys can suffer accelerated wear if exposed to peracetic acid solutions. Even trace amounts of dissolved metal ions can act as catalysts, potentially degrading the peracetic acid itself and reducing its effectiveness over time.

Corrosion isn’t just a mechanical issue—it can also pose contamination risks. In food or pharmaceutical applications, metal ion leaching from corroded parts could compromise product safety. That’s why stainless steel, especially high-grade types like 316, is often preferred in systems using peracetic acid: it resists corrosion far better than zinc or copper-based alloys.

So while peracetic acid is excellent for killing pathogens, its aggressiveness demands careful material selection. If zinc components are present in a system, prolonged exposure spells trouble. Engineers and maintenance teams must account for this when designing or operating disinfection systems.

In short, peracetic acid doesn’t just dissolve zinc—it does so aggressively, making compatibility a critical factor in any application where the two might meet.