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ISOPHTHALIC ACID ICSC: 0500
March 1995
1,3-Benzenedicarboxylic acid
m-Phthalic acid
PDF for printing Explanation of fields
CAS No: 121-91-5
RTECS No: NT2007000
    C8H6O4 / C6H4(COOH)2
Molecular mass: 166.1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible. NO open flames. Water spray, foam, powder, carbon dioxide.
EXPLOSION Finely dispersed particles form explosive mixtures in air. Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.  
 
EXPOSURE   PREVENT DISPERSION OF DUST!  
Inhalation   Local exhaust. Fresh air, rest.
Skin Redness. Protective gloves. Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes   Safety spectacles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion   Do not eat, drink, or smoke during work. Rinse mouth.

SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Personal protection: P2 filter respirator for harmful particles.  

EMERGENCY RESPONSE SAFE STORAGE
   

IMPORTANT DATA
Physical State; Appearance
COLOURLESS CRYSTALLINE POWDER.

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

Occupational exposure limits
TLV not established.
MAK: 2 mg/m³ (Inhalable fraction); Peak limitation category: I(2); Pregnancy risk group: C; (DFG 2006).

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

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

Effects of short-term exposure
The substance is mildly irritating to the skin.


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point: 345-348°C
Relative density (water = 1): 1.54
Solubility in water: none in cold water, poor in boiling water
Auto-ignition temperature: >650°C
 

NOTES
Sublimes without decomposition.
Card has been partially updated in July 2007: see Occupational Exposure Limits.

IPCS
International
Programme on
Chemical Safety
WHO ILO UNEP EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2006
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.

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