Agent Name

Peroxyacetic acid

Alternative Name

Peracetic acid

CAS Number

79-21-0

Formula

C2-H4-O3

Major Category

Other Classes

Synonyms

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

Category

Peroxides, Organic

Description

Colorless liquid with an acrid odor; [HSDB]

Sources/Uses

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]

Comments

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
STEL (ACGIH)

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

Flammability (NFPA)

2: High ambient temperature required

Adverse Effects
Asthma

Yes

Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

ACGIH Carcinogen

Not Classifiable

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Biomedical References

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: