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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/EINECS # 202-830-0
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.

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/m³ as TWA; (ACGIH 2004).
MAK: 0.1 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 inhalation of its aerosol and by ingestion.

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

NOTES
Card has been partly updated in August 2006. See sections Occupational Exposure Limits.
ADDITIONAL INFORMATION


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© IPCS, CEC 2005 



    See Also:
       Toxicological Abbreviations