Diethyl phthalate

  • Phthalic acid, diethyl ester
  • 1,2-Benzenedicarboxylic acid, diethyl ester
  • Ethyl phthalate
  • DEP
Formula C12H14O4
Structure
Description Water-white to colorless, odorless, oily liquid.
Uses In manufacture celluloid, solvent for cellulose acetate in manufacture varnishes & dopes, fixative for perfumes, denaturing alcohol.

Registry Numbers and Inventories.
CAS 84-66-2
EC (EINECS/ELINCS) 201-550-6
EC Risk Phrase R 36/38
EC Safety Phrase S 26 36
RTECS TI1050000
RTECS class Tumorigen; Mutagen; Reproductive Effector; Human Data; Primary Irritant
Merck 12,7527
Beilstein/Gmelin 1912500
Beilstein Reference 4-09-00-03172
RCRA U088
EPA OPP 128947
Swiss Giftliste 1 G-3186
Canada DSL/NDSL DSL
US TSCA Listed
Austrailia AICS Listed
New Zealand Listed
Japan ENCS (MITI) Listed
Korea ECL Listed

Properties.
Formula C12H14O4
Formula mass 222.24
Melting point, °C -3
Boiling point, °C 298
Vapor pressure, mmHg 0.00081 (25 C)
Vapor density (air=1) 7.6
Saturation Concentration 2.17 ppm (.0002%) at 25 C (calculated)
Density 1.13592 g/cm3 (0 C)
Solubility in water 1 g/L
Viscosity 2.15 cp (86 C)
Surface tension 37.5 g/s2 (20 C)
Refractive index 1.5000 (21C)
Partition coefficient, pKow 2.47
Heat of vaporization 63.30 kJ/mol
Heat of combustion -5582 kJ/mol

Hazards and Protection.
Storage Keep away from heat and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Protection 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 gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Remove all sources of ignition.
Disposal code 1
Stability Stable under normal shipping and handling conditions.
Incompatibilities Strong acids such as nitric acid, strong oxidizing agents, and permanganates.
Decomposition Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C 156
Autoignition, °C 430
Upper exp. limit, % 5.3
Lower exp. limit, % 0.7
Fire fighting Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use water spray to cool fire-exposed containers.
Fire potential Slightly flammable. Requires preheating.
Combustion products Irritating vapors of unburned chemical may form in fire.
NFPA Health 1
  Flammability 1  
  Reactivity 0  

Health.
Exposure limit(s) TLV (as TWA): 10 ppm; 5 mg/m3 (ACGIH 1992-1993). NIOSH REL: TWA 5 mg/m3
Poison_Class 4
Exposure effects May cause fetal effects.
   Ingestion Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation Causes respiratory tract irritation. May cause narcotic effects in high concentration.
   Skin Causes skin irritation.
   Eyes Contact produces irritation, tearing, and burning pain.

First aid
 
   Ingestion Induce vomiting. 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.
   Inhalation Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin 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.
   Eyes Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
USCG CHRIS Code DPH  
USCG Compatatibility Group 34 Esters
HS Code 2917 34 00  
Std. Transport # 4962112  
IMO Chemical Code 17
IMO Pollution Category C
IMO Hazard code P