Name: Di-2-ethylhexyl adipate
CAS Number: 103-23-1
UN Number: -
Formulae: C22H42O4
Name: Di-2-ethylhexyl adipate
CAS Number: 103-23-1
UN Number: -
Formulae: C22H42O4
Physicochemical properties/Characteristics
-
Fp
Physical behaviour (GESAMP, 2016)
1, 2 -
370.574
Molecular Weight
2
(g/mol) -
0.92
Density
2
(kg/L) -
1.0E-7
Vapour pressure
2
(KPa; 25ºC) -
1
Water solubility
2
(mg/L; 22ºC) -
13.70
Dynamic viscosity
2, 3
(mPa.s; 20ºC) -
-67.8
Melting point (ºC)
2 -
417.0
Boiling point (ºC)
2 -
6384.0
Volatilization half-life (days)
4
- G: gas; D: dissolver; E: evaporator; F: floater; S: sinker; GD: gas/dissolver; DE: dissolver/evaporator; FD: floater/dissolver; FE: floater/evaporator; FED: floater/evaporator/dissolver; Fp: persistent floater; SD: sinker/dissolver
- Values collected from the literature and public databases e.g. PubChem
- “-“ corresponds to values not found
- Values estimated with models of the EPI suiteTM
Fugacity/Persistence
-
0.00
Air
4, 5 -
91.70
Water
4, 5 -
0.01
Soil
4, 5 -
8.31
Sediment
4, 5 -
10.4
Persistence (days)
4
- Values estimated with models of the EPI suiteTM
- In the present study, only emissions in water were considered
Physicochemical degradation/Biodegradation
-
5.1
Atmosferic Oxidation (hours)
4 -
R
Biodegradation rate (GESAMP, 2016)
6, 7 -
0.93
Aerobic biodegradation probability
4 -
4.31 hours-days
Primary aerobic biodegradation half-life
4, 8 -
3.26 days-weeks
Ultimate aerobic biodegradation half-life
4, 8 -
-
Hydrocarbon Biodegradation half-life (days)
3, 4 -
0.26
Anaerobic Biodegradation probability
4
- “-“ corresponds to values not found
- Values estimated with models of the EPI suiteTM
- Results obtained from the literature
- GESAMP criteria consider substances to be “readily biodegradable” (R) if, in 28-day biodegradation studies, the following levels of degradation are achieved: in tests based upon dissolved organic carbon (DOC) die-away: ≥ 70%; or in tests based upon oxygen depletion or carbon dioxide generation: ≥ 60% of the theoretical maxima; or where only chemical oxygen demand (COD) and biochemical oxygen demand (BOD5) data are available, the ratio of BOD5/COD ≥ 0.5; or where other convincing scientific evidence is available to demonstrate that the substance can be degraded (biotically and/or abiotically) in the aquatic environment to a level of > 70% within a 28-day period. Otherwise they are “not readily biodegradable” (NR) (GESAMP, 2014).
- See Table 1 in the supplementary material for more information on the rating reported by Boethling et al. (1994)
Bioaccumulation/Biotransformation
-
0.31
Biotransformation half-life (days)
2 -
8.10
Partition coefficient (log Kow)
2 -
5.6
Bioconcentration factor (BFC)
4 -
2
Bioaccumulation rate (GESAMP, 2016)
9 -
4.92
Adsorption coefficient (log koc)
2
- Values collected from the literature and public databases e.g. PubChem
- Values estimated with models of the EPI suiteTM
- See Table 2 in the supplementary material for more information on Bioaccumulation rate classification (GESAMP, 2014)
Aquatic Toxicity
-
4
Acute toxicity (GESAMP, 2016)
10 -
2
Chronic toxicity (GESAMP, 2016)
3, 10
- “-“ corresponds to values not found
- See Table 3 in the supplementary material for more information on Aquatic Toxicity classification (GESAMP, 2014)
Acute Mammals/Human health effects
-
0
Oral Toxicity (GESAMP, 2016)
11 -
0
Dermal toxicity (GESAMP, 2016)
11 -
0
Inhalation toxicity (GESAMP, 2016)
11 -
1
Skin irritation & corrosion (GESAMP, 2016)
11 -
1
Eye irritation & corrosion (GESAMP, 2016)
11 -
0
Toxicity
12 -
0
Severity
12
- See Table 4 in the supplementary material for more information on Human health (Toxic effects to mammals) classification (GESAMP, 2014)
- For more information on Toxicity and Severity scores consult Harold et al. (2014)
Chronic Human/Mammals health effects
-
1
Carcinogenicity (IARC)
3, 13 -
No
Mutagenicity (GESAMP, 2016)
11 -
Yes
Reprotoxicity (GESAMP, 2016)
11 -
No
Sensitizing to skin (GESAMP, 2016)
11 -
No
Aspiration hazard (GESAMP, 2016)
11 -
No
Target Organ Toxicity (GESAMP, 2016)
11 -
No
Sensitizing to respiratory system (GESAMP, 2016)
11 -
No
Neurotoxicity (GESAMP, 2016)
11 -
No
Immunotoxicity (GESAMP, 2016)
11
- “-“ corresponds to values not found
- See Table 4 in the supplementary material for more information on Human health (Toxic effects to mammals) classification (GESAMP, 2014)
- See Table 5 in the supplementary material for more information on IARC classification
Toxicity tests results
PNECseawater:
0.35 µg/L
PNECwater, intermittent:
µg/L
Invertebrates
-
MATC
Parameter
1 -
0.035
Concentration
(mg/L) -
Water flea - Daphnia magna
Species
-
Reproduction
Endpoint
-
Freshwater; 21d life-cycle test
Observations
1
Lowest
- OECD/SIDS - BIS(2-ETHYLHEXYL)ADIPATE. UNEP Publications (2000). Available at: http://www.inchem.org/documents/sids/sids/103231.pdf (accessed January 30, 2017)
Mammals
-
LD50
Parameter
1 -
47
Concentration
(ml/kg) -
Mouse
Species
-
Mortality
Endpoint
-
Acute; intraperitoneal
Observations
2
-
LD50
Parameter
1 -
47
Concentration
(ml/kg) -
Rat
Species
-
Mortality
Endpoint
-
Acute; intraperitoneal
Observations
3
-
LD50
Parameter
1 -
5600
Concentration
(mg/kg) -
Rat
Species
-
Mortality
Endpoint
-
Acute; oral
Observations
4
-
LD50
Parameter
1 -
0.9
Concentration
(ml/kg) -
Rat
Species
-
Mortality
Endpoint
-
Acute; intravenous
Observations
5
-
LD50
Parameter
2 -
540
Concentration
(mg/kg) -
Rabbit
Species
-
Mortality
Endpoint
-
Acute; intravenous
Observations
6
- DHHS/NTP; Carcinogenesis Bioassay of Di(2-Ethylhexyl) Adipate in F344 Rats and B6C3F1 Mice. (Feed Study) p.2 (1982) Technical Rpt Series No. 212 NIH Pub No. 81-1768
- Lewis RJ; Sax's Dangerous Properties of Industrial Materials. 9th ed. Volumes 1-3. Van Nostrand Reinhold, New York, NY (1996)
References
Boethling RS, Howard PH, Meylan W, Stiteler W, Beauman J, Tirado N. 1994. Group contribution method for predicting probability and rate of aerobic biodegradation. Environ. Sci. Technol. 28: 459-465.
Bonn Agreement, 1994. European Classification System, Bonn Agreement: Counter-Pollution Manual. Bonn Agreement, London (Chapter 25).
GESAMP (IMO/FAO/UNESCO-IOC/WMO/WHO/IAEA/UN/UNEP Joint Group of Experts on the Scientific Aspects of Marine Environmental Protection), 2014. Revised GESAMP Hazard Evaluation Procedure for Chemical Substances Carried by Ships, 2nd edition. Rep. Stud. GESAMP No. 64, 126 pp.
GESAMP Composite List, 2016. ANNEX 5 – UPDATED GESAMP COMPOSITE LIST. Available at: https://edocs.imo.org/Final Documents/English/PPR 1-CIRC.3 (E).docx (Accessed: December 12, 2016).
Harold PD, Souza AS, Louchart P, Russell D, Brunt H, 2014. Development of a risk based prioritisation methodology to inform public health emergency planning and preparedness in case of accidental spill at sea of hazardous and noxious substances (HNS). Environ. Int. 72: 157-163.