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TEREPHTHALIC ACID ICSC: 0330
Date of Peer Review: April 1994

para-Phthalic acid
1,4-Benzenedicarboxylic acid
CAS # 100-21-0 C8H6O4 / C6H4(COOH)2
RTECS # WZ0875000 Molecular mass: 166.1
UN #
EC Index #
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.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE


Inhalation Cough.
Local exhaust or breathing protection.
Fresh air, rest.
Skin Redness.
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes Redness.
Safety goggles.
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. Wash hands before eating.
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.
EU Classification
UN Classification

EMERGENCY RESPONSE STORAGE
NFPA Code: H 0; F 1; R 0;
Separated from strong oxidants.
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 2005

SEE IMPORTANT INFORMATION ON BACK
TEREPHTHALIC ACID ICSC: 0330
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
WHITE CRYSTALLINE POWDER.

PHYSICAL DANGERS:
Dust explosion possible if in powder or granular form, mixed with air.

CHEMICAL DANGERS:
Reacts violently with strong oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 10 mg/m as TWA; (ACGIH 2004).
MAK: IIb (not established but data is available); (DFG 2004).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

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

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes and the skin.

PHYSICAL PROPERTIES
Sublimation point: 402C
Relative density (water = 1): 1.51
Solubility in water, g/100 ml at 20C: 0.28
Vapour pressure, Pa at 20C: <1
Flash point: 260C
Auto-ignition temperature: 496C
Octanol/water partition coefficient as log Pow: 1.96
ENVIRONMENTAL DATA

NOTES
Card has been partly updated in October 2005. See section Occupational Exposure Limits.
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 2005
See Also:
        Terephthalic acid (CHEMINFO)