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PERACETIC ACID (stabilized)
ICSC: 1031
Peer-Review Status: 10.03.2000 Validated
Peroxyacetic acid
Ethaneperoxoic acid
Acetyl hydroperoxide 
CAS #: 79-21-0 RTECS #: SD8750000
UN #: 3105
EC #: 607-094-00-8
EINECS #: 201-186-8
    Formula: C2H4O3 / CH3COOOH
Molecular mass: 76.1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Flammable.  NO open flames, NO sparks and NO smoking. NO contact with flammables or hot surfaces.  Use water spray. 
EXPLOSION Above 40.5°C explosive vapour/air mixtures may be formed. Explosive.  Above 40.5°C 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.  Use 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 for at least 15 minutes, then remove contaminated clothes and rinse again. Refer for medical attention . 
Eyes Redness. Pain. Severe deep burns.  Wear 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 refer for medical attention. 
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 and spilled liquid in covered plastic containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. 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.   
EC 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 
GHS Classification
 

EMERGENCY RESPONSE SAFE 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 substances, reducing agents and incompatible materials. See Chemical Dangers. Cool. Store only if stabilized. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
May decompose explosively on shock, friction or concussion. May explode on heating. The substance is a strong oxidant. It 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 at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation may cause lung oedema. See Notes. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 105°C
Melting point: 0°C
Relative density (water = 1): 1.2
Solubility in water: miscible
Vapour pressure, kPa at 20°C: 2.6
Relative vapour density (air = 1): 2.6
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.04
Flash point: 40.5°C o.c.
Auto-ignition temperature: 200°C
Explosive limits, vol% in air: see Notes 
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 <61°C.
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
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations