Short answer
Combine 27–39% hydrogen peroxide with 22–36% acetic acid, add a small stabilizer, dilute with water, and store in a cool, dark, vented container.
Key points
- Use 27–39% H₂O₂ and 22–36% acetic acid as base.
- Add 0.01–2% stabilizer to prevent breakdown.
- Dilute to desired strength with water.
- Store in a cool, dark, vented container.
- Wear gloves, goggles, and ensure good ventilation.
To prepare peracetic acid, mix 27–39% hydrogen peroxide with 22–36% acetic acid, then add a stabilizer and dilute with water. Store the final solution in a cool, dark, vented container.
Basic formulation
- Hydrogen peroxide: 27–39% (w/w)
- Acetic acid: 22–36% (w/w)
- Stabilizer: 0.01–2% (e.g., phosphates or tinoclor compounds)
- Water: remainder to reach desired concentration
Safety and storage
- Wear protective gloves, goggles, and work in a well‑ventilated area.
- Keep the solution in a dark, cool place; avoid heat and light to prevent pressure buildup.
- Use vented containers to release any excess gas safely.
Frequently asked questions
Can I use household vinegar instead of acetic acid?
Household vinegar contains about 5% acetic acid, which is too low for effective peracetic acid production; commercial acetic acid is required.
Do I need a stabilizer?
A stabilizer helps keep the peracetic acid from decomposing quickly, especially at higher concentrations.
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