Di-sec-octyl phthalate

  • di-2-Ethylhexylphthalate
  • bis-(2-Ethylhexyl)phthalate
  • di-2-Ethylhexyl phthalate
  • DOP
  • DEHP
Formula C24H38O4
Structure
Description Colorless to pale yellow oily liquid. Nearly odorless.
Uses plasticizer

Registry Numbers and Inventories.
CAS 117-81-7
EC (EINECS/ELINCS) 204-211-0
EC Index Number 607-317-00-9
EC Class Toxic for reproduction Category 2
EC Risk Phrase R 60 61
EC Safety Phrase S 53 45
RTECS TI0350000
RTECS class Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Human Data; Primary Irritant
Merck 13,2884
Beilstein/Gmelin 1890696
Beilstein Reference 4-09-00-03181
RCRA U028
EPA OPP 295200
Swiss Giftliste 1 G-3643
Canada DSL/NDSL DSL
US TSCA Listed
Austrailia AICS Listed
New Zealand Listed
Japan ENCS (MITI) Listed

Properties.
Formula C24H38O4
Formula mass 390.57
Melting point, °C -50
Boiling point, °C 386.9
Vapor pressure, mmHg 1.00E-06 (25 C)
Vapor density (air=1) 13.45
Density 0.98 g/cm3 (20 C)
Solubility in water 0.3 mg/L
Viscosity 5.12 cp (85.9 C)
Surface tension est 15 g/s2
Refractive index 1.487 (20 C)
Partition coefficient, pKow 7.60
Heat of vaporization 92.11 kJ/mol
Heat of combustion -352 kJ/mol

Hazards and Protection.
Storage Store in a cool, dry place. Store in a tightly closed container.
Handling Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Use only in a chemical fume hood.
Protection Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
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.
Disposal code 1
Stability Stable under normal temperatures and pressures.
Incompatibilities Strong oxidizing agents.
Decomposition Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C 195
Autoignition, °C 400
Upper exp. limit, % 0.2
Lower exp. limit, % 0.1
Fire fighting Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Water or foam may cause frothing. Use water spray to cool fire-exposed containers. In case of fire use water spray, dry chemical, carbon dioxide, or chemical foam.
Fire potential Slight when exposed to heat or flame.
Combustion products Irritating vapors and toxic gases, such as carbon dioxide and carbon monoxide, may be formed when involved in fire.
NFPA Health 0
  Flammability 1  
  Reactivity 0  

Health.
Exposure limit(s) NIOSH REL: Ca TWA 5 mg/m3 ST 10 mg/m3 See Appendix A OSHA PEL: TWA 5 mg/m3 IDLH Ca [5000 mg/m3]
Carcinogin G-A3, N-2, CP65
Poison_Class 4
Exposure effects With most exposures, one would not expect to see alternations in vital signs. However, with large oral or inhalation exposures, rapid breathing and rapid heart rate may be expected. Central nervous system depression might develop if large amounts are absorbed. At the time of this writing, there are not data on reproductive toxicity in humans from DEHP. Rodent studies suggest testicular atrophy.
   Ingestion Ingestion of large amounts may cause gastrointestinal irritation. May cause central nervous system depression.
   Inhalation May cause respiratory tract irritation.
   Skin May cause mild skin irritation.
   Eyes May cause mild eye irritation. Causes redness and pain.

First aid
 
   Ingestion Get medical aid. Wash mouth out with water.
   Inhalation Remove from exposure to fresh air immediately. Get medical aid.
   Skin Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes 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 EHE  
USCG Compatatibility Group 34 Esters
HS Code 2917 34 00  
IMO Pollution Category D III