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
R 36/38
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.
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
 
HS Code
2917 34 00
 
Std. Transport #
4962112
 
IMO Chemical Code
17
IMO Pollution Category
C
IMO Hazard code
P