- p-Phthalic acid
- 1,4-Benzenedicarboxylic acid
White or off-white crystals or powder. Odorless or a slight acetic acid odor.
As a reagent for alkali in wool, additive to poultry feeds.
Registry Numbers and Inventories.
S 26 36
Drug; Mutagen; Primary Irritant
Swiss Giftliste 1
Japan ENCS (MITI)
Boiling point, °C
Vapor pressure, mmHg
7E-7 (25 C)
Very low at normal temperatures.
Probably very low at normal temperatures.
Solubility in water
Partition coefficient, pKow
Heat of vaporization
Heat of combustion
Hazards and Protection.
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stable under normal temperatures and pressures.
Strong oxidizing agents
Carbon monoxide, carbon dioxide, acrid smoke and fumes.
260 (open cup)
Upper exp. limit, %
Lower exp. limit, %
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Water or foam may cause frothing. Use carbon dioxide or dry chemical.
This material is probably combustible.
Decreased blood pressure has been reported in dogs. Human data are lacking. Neuroendocrine changes have been noted in exposed rats. Human data are lacking. <br>Rats exposed to aerosols by inhalation did not develop significant toxic effects in the dams or fetuses, and no teratogenic effects were observed. <br> 1. Terephthalic acid was transported across the placenta; however, the concentrations in fetal tissues were LOW compared to those in maternal tissues. <br>No data were available to assess the potential effects of exposure to this agent during lactation.
May cause irritation of the digestive tract.
Causes respiratory tract irritation.
Causes slight skin irritation.
Causes eye irritation.
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
4. Organic acids
2917 36 00