DIOCTYL PHTHALATE

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

External resources

CAMEO Chemical Database
WISER Substance List

Description

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 (%)

Mass flow rate of the combustion surface (Kg/(m²·s))

0.03

Rad fraction (%)

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

Hazard statements

Health

H360	May damage fertility or the unborn child.

Precautionary statements

Prevention

P201	Obtain special instructions before use.
P281	Use personal protective equipment as required.

Response

P308 + P313

IF exposed or concerned: Get medical advice/attention.

TLV-TWA

0.3

TEEL-1 (mg/m3)

TEEL-2 (mg/m3)

TEEL-3 (mg/m3)

500

Ecotoxicity

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

No incident reports available

Emergency Response Guidebook

No guides available

At sea emergency guide