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Cleaning & Disinfection

Peracetic Acid

CH3CO3H

Broad-spectrum peroxygen disinfectant used for food-contact sanitation, clean-in-place and wastewater.

Chemical name
Peroxyacetic acid
CAS number
79-21-0
Also known as
PAA, Peroxyacetic acid
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Product overview

Peracetic acid is an organic peroxide typically supplied as an equilibrium solution with hydrogen peroxide and acetic acid. It is valued as a disinfectant because it breaks down into acetic acid, water and oxygen.

It is commonly used for clean-in-place (CIP) sanitation in food and beverage plants, disinfection of equipment and surfaces, and in wastewater disinfection. Concentration and formulation are confirmed with each inquiry.

Applications

Typical uses for this chemical. Suitability for a specific process, and grade requirements for food, pharmaceutical or potable-water use, should be confirmed with our team.

Technical information

Technical information for Peracetic Acid
Chemical namePeroxyacetic acid
FormulaCH3CO3H
CAS number79-21-0
Molecular weight76.05 g/mol
HS code2915.90
Transport classification≤5% PAA: UN3149, Class 5.1 (8), PG II · 5–35% PAA: UN3109, Class 5.2 (8)
AppearanceClear, colourless liquid with a pungent, vinegar-like odour
FormsEquilibrium aqueous solution of peracetic acid, hydrogen peroxide, acetic acid and water (stabilised)
Grades5% PAA (approx. 20–27% H2O2) · 12% PAA (approx. 18.5% H2O2, 20% acetic acid) · 15% PAA (approx. 21–23.5% H2O2) · High-strength 35–40% PAA (chemical synthesis) · BPR active-substance (AS) grades; food-contact sanitiser grades
Packaging25–30 kg HDPE canisters/carboys with vented closures · 220 kg HDPE drums (vented) · 1,000–1,100 kg IBCs (vented) · Bulk (grades <35% PAA) on request

Identifiers and classifications are standard reference data for the substance. Forms, grades and packaging reflect what is commonly traded internationally; availability for your order is confirmed in the quotation.

Typical specifications

Typical values for commonly traded grades of Peracetic Acid, based on international standards and published manufacturer data.

5% PAA equilibrium grade (typical)

Peracetic Acid: 5% PAA equilibrium grade (typical)
ParameterTypical value
Peracetic acid4.0–5.4% w/w
Hydrogen peroxide26.0–27.0% w/w
Density (20 °C)1.10–1.12 g/mL
Available oxygen≈ 11.5% w/w
Freezing point≈ -28 °C (< -20 °C)
AppearanceClear, colourless liquid
Shelf life (sealed, vented original pack)≥ 12 months

15% PAA equilibrium grade (typical)

Peracetic Acid: 15% PAA equilibrium grade (typical)
ParameterTypical value
Peracetic acid14.0–16.0% w/w (typical 15.0%)
Hydrogen peroxide21.0–23.5% w/w (typical 22%)
Acetic acid≈ 16% w/w typical (≤ 36% max in some specs)
Water≈ 46% w/w typical
Total active oxygen≈ 13.7% w/w
Density (20 °C)1.15 g/mL
pH (1% solution)≤ 3.0
Freezing point≈ -50 °C
Shelf life (sealed, vented original pack)≥ 12 months
Reference standards:EU Biocidal Products Regulation – active substance peracetic acid (AS grades)US FDA 21 CFR 178.1010 (sanitizing solutions)UN Model Regulations / ADR / IMDG (UN3149, UN3109, UN3105)EU Explosives Precursors Regulation (H2O2 content)

An equilibrium mixture of peracetic acid, hydrogen peroxide, acetic acid and water. Store cool in vented packaging; registrations for biocidal use vary by country.

Typical values are for guidance. The specification for your order depends on grade and origin and is confirmed in the quotation, Technical Data Sheet and Certificate of Analysis.

Packaging

  • 25–30 kg HDPE canisters/carboys with vented closures
  • 220 kg HDPE drums (vented)
  • 1,000–1,100 kg IBCs (vented)
  • Bulk (grades <35% PAA) on request

Packaging commonly used for export shipments of this product. Availability depends on grade and origin and is confirmed per order.

Packaging confirmed per order

Tell us your preferred packaging and handling requirements — we'll confirm available options for your grade, volume and destination.

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Industries

Documentation

Request the documents you need to evaluate Peracetic Acid. We send documents that match the grade being quoted.

  • TDS

    Technical Data Sheets

    Product specifications and technical information.

  • SDS

    Safety Data Sheets

    Safety and handling documentation where available.

  • COA

    Certificate of Analysis

    Batch-specific documentation where applicable.

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Get a quotation for Peracetic Acid

Share your quantity and destination — our export team will confirm grade, packaging and pricing.

Include country code, e.g. +66

Frequently asked questions

What grades of Peracetic Acid are available?

Peracetic Acid is commonly traded as 5% PAA (approx. 20–27% H2O2); 12% PAA (approx. 18.5% H2O2, 20% acetic acid); 15% PAA (approx. 21–23.5% H2O2); High-strength 35–40% PAA (chemical synthesis); BPR active-substance (AS) grades; food-contact sanitiser grades. Availability varies by origin and destination market — share the grade, purity or standard you require and we will confirm what can be supplied, with the current specification.

What is the HS code for Peracetic Acid?

Peracetic Acid is usually classified under HS 2915.90. National tariff codes add further digits and can differ by form and country, so confirm the full code with your customs broker before shipment.

Is Peracetic Acid a dangerous good for shipping?

Typical transport classification: ≤5% PAA: UN3149, Class 5.1 (8), PG II · 5–35% PAA: UN3109, Class 5.2 (8). Classification can vary with concentration and form, so the Safety Data Sheet for the grade shipped is the reference used when booking freight.

Which standards apply to Peracetic Acid?

Commonly referenced standards include EU Biocidal Products Regulation – active substance peracetic acid, US FDA 21 CFR 178.1010, UN Model Regulations / ADR / IMDG, EU Explosives Precursors Regulation. Tell us which standard your application or market requires and we will confirm a grade that meets it.

How is Peracetic Acid packed for export?

Common export packaging for Peracetic Acid includes 25–30 kg HDPE canisters/carboys with vented closures; 220 kg HDPE drums (vented); 1,000–1,100 kg IBCs (vented); Bulk (grades <35% PAA) on request. Tell us your preferred packaging and we will confirm what is available for your grade and volume.

Can I get the TDS, SDS or COA for Peracetic Acid?

Yes — request them on this page. We send the documents that apply to the specific grade you are evaluating; a Certificate of Analysis is batch-specific and issued where applicable.

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