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SALICYLIC ACIDICSC: 0563 (November 1997)
2-Hydroxybenzoic acid
o-Hydroxybenzoic acid
CAS #: 69-72-7
EC Number: 200-712-3

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible.  Finely dispersed particles form explosive mixtures in air.  NO open flames.  Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.  Use water spray, carbon dioxide, powder.  In case of fire: keep drums, etc., cool by spraying with water. 

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Sore throat. See Ingestion.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness.  Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness. Pain.  Wear safety goggles 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 Nausea. Vomiting. Ringing in the ears.  Do not eat, drink, or smoke during work.  Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
Separated from strong oxidants. 
PACKAGING
 
SALICYLIC ACID ICSC: 0563
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
NEEDLE-SHAPED CRYSTALS OR COLOURLESS CRYSTALLINE POWDER. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
The solution in water is a weak acid. Reacts with strong oxidants. 

Formula: C7H6O3 / HOC6H4COOH
Molecular mass: 138.1
Sublimation point: 76°C
Melting point: 159°C
Relative density (water = 1): 1.4
Solubility in water, g/100ml at 20°C: 0.2
Vapour pressure, Pa at 130°C: 114
Relative vapour density (air = 1): 4.8
Flash point: 157°C
Auto-ignition temperature: 540°C
Octanol/water partition coefficient as log Pow: 2.2  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation and by ingestion. 

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the central nervous system and acid-base balance in the body. This may result in delirium and tremors. 

Inhalation risk
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed. 

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
 

NOTES
Volatility becomes noticeable above 50-60°C.
Anyone who has shown aspirin sensitization should never come in contact with this substance. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations
       SALICYLIC ACID (JECFA Evaluation)
       Salicylic acid (PIM 642)