CAS Number: 117-84-0

Also known as: o-BENZENE DICARBOXYLIC ACID DIOCTYL ESTER, 1,2-BENZENE DICARBOXYLIC ACID DIOCTYL ESTER, CELLUFLEX DOP, DEHP, DIETHYL HEXYL PHTHALATE, DI-(2-ETHYL-HEXYL) PHTHALATE, DINOPOL NOP, DIOCTYL-o-BENZENE DICARBOXYLATE, DNOP, DOP, Bis(2-Ethylhexyl) Phthalate, Bis(2-Ethylhexyl)Phthalate, Diethylhexyl Phthalate, Bis(2-Ethylhexyl) 1,2-Benzenedicarboxylate, Di(2-Ethylhexyl)Phthalate, Di(2-Ethylhexyl) Orthophthalate, Dioctyl Phthalate, 1,2-Benzenedicarboxylic Acid, Bis(2-Ethylhexyl) Ester, Phthalic Acid, Bis(2-Ethylhexyl) Ester, Di-Sec-Octyl Phthalate
Information on chemical

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List


CAS number 117-84-0
Formula C24H38O4

Physical chemical data

Physical State (20°C) Liquid
Physical State (25°C) Liquid
Density (kg/m3)
980 [Kg/m³] at a temperature of 20°C
Kinematic viscosity (cSt)
82.4 [cSt] at a temperature of 20°C
59 [cSt] at a temperature of 25°C
Molar mass (g/mol) 390.6
Solubility (g/L)
0 [g/L] at a temperature of 20°C and salinity of 0‰
Boiling Point (°C) 386
Melting Point (°C) 412
Critical temperature (°C) 835
Critical pressure (Pa) 1070000
Ignition Temperature (°C) 390
Flash Point (°C) 199
Flash Point (Pensky-Martens closed cup) (°C) 200
Flash Point (Cleveland open cup) (°C) 218
Lower explosivity limit (LEL) (volume %) 0.17
Combus enthalpy (J/Kg) 28200000
Specific heat capacity (J/(Kg·K)) 1804
Combustion efficiency (%) 70
Mass flow rate of the combustion surface (Kg/(m²·s)) 0.03
Rad fraction (%) 30
Henry's constant (mol/(m³·Pa)) 4.43

Behaviour at sea

Log kow 7.5
Log koc 6
Aqueous photolysis (Half-life) Not photolysable
Biodegradation in estuary environment (Half-life) (days) Not hydrolysable
Biodegradation in marine environment (Half-life) (days) Not biodegradable
Bioconcentration factor (BCF) 2500

Additional data

Colour colourless
Odour weak odour
MARPOL pollution category
Category Description
X Noxious Liquid Substances which, if discharged into the sea from tank cleaning or deballasting operations, are deemed to present a major hazard to either marine resources or human health and, therefore, justify the prohibition of the discharge into the marine environment.

Transportation data

Cargo group 34
State liquid
Temperature (°C) ambient
Pressure (Pa) ambient
Family name esters

Reactivity data

Acid(s) Yes
Oxidizing agents Yes

GESAMP Hazard profile

Bioaccumulation in logPow (A1A) 0 - e <1, or > ca.7, or Mol. Wt. > 1000
Bioaccumulation in BCF (A1B) 4 - ≥500 and <4000
Bioaccumulation (A1) 4 - High potential to bioaccumulate
Biodegradation (A2) R - Readily biodegradable
Acute aquatic toxicity (B1) (LC/EC/IC50 (mg/l)) 0 - Non-toxic
Chronic aquatic toxicity (B2) (NOEC (mg/l)) 0 - Negligible
Acute mammalian toxicity by swallowing (C1) (LD50 (mg/kg)) 0 - Negligible
Acute mammalian toxicity by skin penetration (C2) (LD50 (mg/kg)) 0 - Negligible
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l)) 1 - Slight
Skin irritation/corrosivity (D1) 1 - Mildly irritating
Eye irritation/corrosivity (D2) 1 - Mildly irritating
Interference with coastal amenities (E2) Fp - Persistent slick forming substance
Effects on wildlife and bottom habitats (E3) 2 - Is a persistent floater; and/or is moderately acutely toxic; and/or is irritating to skin and/or eyes; and/or has long-term health effects other than carcinogenicity, mutagenicity or reprotoxicity; and/or is highly flammable; and/or is flammable and is a floater with evaporative properties

Human toxicity threshold

Health Hazard
Hazard statements
H360 May damage fertility or the unborn child.
Precautionary statements
P201 Obtain special instructions before use.
P281 Use personal protective equipment as required.
P308 + P313 IF exposed or concerned: Get medical advice/attention.
TEEL-1 (mg/m3) 10
TEEL-2 (mg/m3) 75
TEEL-3 (mg/m3) 500


Lowest median lethal concentration (LC50) on crustacean (mg/l) 0.511
Lowest median lethal concentration (LC50) on fishes (mg/l) 0.69
Highest no observed effect concentration (NOEC) on crustacean (mg/l) 1
Highest no observed effect concentration (NOEC) on fishes (mg/l) 5
Incident reports

Incident reports

No incident reports available

Emergency Response Guidebook

Emergency Response Guidebook

No guides available

At sea emergency guide

At sea emergency guide

No guides available

Decision trees

Decision trees

No decision trees available

No additional data

last modified 2020-12-11T09:57:21+00:00