Agent Name

Peroxyacetic acid

Alternative Name

Peracetic acid

CAS Number




Major Category

Other Classes


Peracetic acid; Acetic peroxide; Acetyl hydroperoxide; Acide peracetique [French]; Acide peroxyacetique [French]; Acido peroxiacetico [Spanish]; Desoxon 1; Estosteril; Ethaneperoxoic acid; Hydroperoxide, acetyl; Kyselina peroxyoctova [Czech]; Monoperacetic acid; Osbon AC; PAA; Peroxoacetic acid; Proxitane 4002; Ethaneperoxic acid; Peroxyacetic acid, >43% and with >6% hydrogen peroxide; [ChemIDplus] UN3105


Peroxides, Organic


Colorless liquid with an acrid odor; [HSDB]


Used as a bleaching agent of paper and textiles, a catalyst of polymerization, a fungicide, and a chemical intermediate; [HSDB] Also used as an oxidizing agent in organic synthesis; [Merck Index] Used as a disinfectant/sanitizer for food, industrial, medical, and residential applications; [Reference #2] Used to sterilize reusable medical and dental equipment; [ACGIH]


Highly corrosive to skin; [Quick CPC] Commercial solution is peracetic acid, hydrogen peroxide, acetic acid, and water (at equilibrium); [Merck Index] May decompose violently from shock, friction, or concussion; A strong oxidizing agent that reacts violently with combustible substances; Corrosive to skin, eyes, and respiratory tract; Inhalation may cause pulmonary edema; [ICSC] Does not exist in pure (100%) form; Commercially available as an equilibrium solution, distilled product (mainly peracetic acid and water), and can be generated in situ with an activator and a persalt dissolved in water; [OECD SIDS] Occupational asthma confirmed by broncho-provocation testing in two endoscopy unit workers exposed to peracetic acid/hydrogen peroxide mixture; [Malo] TLV Basis: Irritation (upper respiratory, eye, and skin); [ACGIH] Available in 40% solution; Causes severe burns; Inhalation of high concentration can cause injury to the upper respiratory tract; [MSDSonline]

Reference Link

Asthma caused by peracetic acid-hydrogen peroxide mixture

Exposure Assessment

0.4 ppm, inhalable fraction and vapor

Vapor Pressure

14.5 mm Hg

Lethal Concentration

LC50 (rat) = 204 mg/m3/4hr

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Organic peroxide type D, liquid."

Reference Link

EPA Pesticide Chemical Search

Adverse Effects


Toxic Pneumonitis



Skin Burns

ACGIH Carcinogen

Not Classifiable

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information


Chemical Information

Search ChemIDplus

Biomedical References

Search PubMed

Related Information in HazMap

Occupational diseases associated with exposure to this agent:


Industrial Processes with risk of exposure: