- 1,2-Benzenedicarboxylic acid, dibutyl ester
- Dibutyl phthalate
- Phthalic acid, dibutyl ester
Colorless to faint yellow, oily, viscous liquid, odorless or slight aromatic, ester odor.
Registry Numbers and Inventories.
EC Index Number
Toxic for reproduction Category 2; Toxic for reproduction Category 3; Dangerous for the Environment
R 61 50 62
S 53 45 61
Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Human Data
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
0.00012 (25 C)
Vapor density (air=1)
0.013 - 0.18 ppm at 25 C (calculated)
Odor Threshold Odor threshold 0.26 To 1.47 mg/m3
1.0595 g/cm3 (2 C)
Solubility in water
0.203 p at 20C
1.5011 (20 C)
Partition coefficient, pKow
Heat of vaporization
Heat of combustion
Hazards and Protection.
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse.
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.
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Remove all sources of ignition. Provide ventilation.
Stable at room temperature in closed containers under normal storage and handling conditions.
Strong acids, strong bases, strong oxidizing agents.
Carbon monoxide, carbon dioxide, acrid smoke and fumes.
Upper exp. limit, %
Lower exp. limit, %
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Containers may explode when heated. Combustible material when exposed to heat or flame. Extinguishing media: Water or foam may cause frothing. Cool containers with flooding quantities of water until well after fire is out. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
This material is combustible.
Containers may explode when heated.
The thermal decomposition of dibutyl phthalate was carried out in a flow system @ 250-500 C. The major products were 1-butene, butanol and phthalic anhydride.
TLV (as TWA): ppm; 5 mg/m3 (ACGIH 1992-1993) OSHA PEL: TWA 5 mg/m3 NIOSH REL: TWA 5 mg/m3 NIOSH IDLH: 4000 mg/m3
Effects may be delayed.
May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
Causes respiratory tract irritation. Inhalation of a mist of this material may cause respiratory tract irritation. Can produce delayed pulmonary edema.
Causes skin irritation.
Contact produces irritation, tearing, and burning pain. May cause chemical conjunctivitis.
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration.
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.
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.