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PERACETIC ACID (stabilized) ICSC: 1031
Date of Peer Review: October 2000

Peroxyacetic acid
Ethaneperoxoic acid
Acetyl hydroperoxide
CAS # 79-21-0 C2H4O3 / CH3COOOH
RTECS # SD8750000 Molecular mass: 76.1
UN # 3105
EC # 607-094-00-8
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Flammable. Explosive.
NO open flames, NO sparks, and NO smoking. NO contact with flammable substances. NO contact with hot surfaces.
Water spray.
EXPLOSION Above 40.5C explosive vapour/air mixtures may be formed.
Above 40.5C use a closed system, ventilation, and explosion-proof electrical equipment. Do NOT expose to friction or shock.
In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position.
EXPOSURE
AVOID ALL CONTACT!

Inhalation Burning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat. Symptoms may be delayed (see Notes).
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Half-upright position. Refer for medical attention. See Notes.
Skin MAY BE ABSORBED! Redness. Pain. Blisters. Skin burns.
Protective gloves. Protective clothing.
First rinse with plenty of water, then remove contaminated clothes and rinse again. Refer for medical attention.
Eyes Redness. Pain. Severe deep burns.
Face shield or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Abdominal pain. Burning sensation. Shock or collapse.
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Collect leaking liquid in covered plastic containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT absorb in saw-dust or other combustible absorbents. Do NOT wash away into sewer. Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment.
EU Classification
Symbol: O, C, N
R: 7-10-20/21/22-35-50
S: (1/2-)-3/7-14-36/37/39-45-61
Note: [B, D]
UN Classification
UN Hazard Class: 5.2
UN Pack Group: II
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-52GP1-L
NFPA Code: H3; F2; R4; ox
Fireproof. Provision to contain effluent from fire extinguishing. Separated from combustible and reducing substances, incompatible materials. See Chemical Dangers. Cool. Store only if stabilized.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK
PERACETIC ACID (stabilized) ICSC: 1031
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID, WITH CHARACTERISTIC ODOUR.

CHEMICAL DANGERS:
May explosively decompose on shock, friction, or concussion. May explode on heating. The substance is a strong oxidant and reacts violently with combustible and reducing materials. The substance is a weak acid. Attacks many metals including aluminium.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK: Carcinogen category: 3B; (DFG 2004).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation, through the skin and by ingestion.

INHALATION RISK:
No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is corrosive to the eyes, the skin and the respiratory tract. Corrosive on ingestion. Inhalation of may cause lung oedema (see Notes).

PHYSICAL PROPERTIES
Boiling point: 105C
Melting point: 0C
Relative density (water = 1): 1.2
Solubility in water: miscible
Vapour pressure, kPa at 20C: 2.6
Relative vapour density (air = 1): 2.6
Relative density of the vapour/air-mixture at 20C (air = 1): 1.04
Flash point: 40.5C o.c.
Auto-ignition temperature: 200C
Explosive limits, vol% in air: see Notes
ENVIRONMENTAL DATA
The substance is very toxic to aquatic organisms.
NOTES
Peracetic acid is always sold in solution with acetic acid and hydrogen peroxide. Explosive limits are unknown in literature, although the substance is combustible and has a flash point <61C. Rinse contaminated clothes (fire hazard) with plenty of water. The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation is therefore essential. An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert.
Card has been partly updated in April 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999