Fate, weathering, behaviour and toxicity of priority Hazardous and Noxious Substances

Advanced Search

On this database it is collected information on fate, weathering, behaviour and toxicity of priority Hazardous and Noxious Substances (HNS) from different sources. This systematized information is a useful tool to predict the behaviour of priority HNS in accidental spills, backing spill preparedness and effective decision-making process. This database also provides an important support to environmental and human health risk assessment, and monitoring actions.

Read Documents

MARINER is co-financed by the European Union in the framework of the Union Civil Protection Mechanism. DG-ECHO

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
(g/mol)

2

0.92

Density
(kg/L)

2

1.0E-7

Vapour pressure
(KPa; 25ºC)

2

1

Water solubility
(mg/L; 22ºC)

2

13.70

Dynamic viscosity
(mPa.s; 20ºC)

2, 3

-67.8

Melting point (ºC)

2

417.0

Boiling point (ºC)

2

6384.0

Volatilization half-life (days)

4
  1. 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
  2. Values collected from the literature and public databases e.g. PubChem
  3. “-“ corresponds to values not found
  4. 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
  1. Values estimated with models of the EPI suiteTM
  2. 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
  1. “-“ corresponds to values not found
  2. Values estimated with models of the EPI suiteTM
  3. Results obtained from the literature
  4. 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).
  5. 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
  1. Values collected from the literature and public databases e.g. PubChem
  2. Values estimated with models of the EPI suiteTM
  3. 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
  1. “-“ corresponds to values not found
  2. 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
  1. See Table 4 in the supplementary material for more information on Human health (Toxic effects to mammals) classification (GESAMP, 2014)
  2. 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
  1. “-“ corresponds to values not found
  2. See Table 4 in the supplementary material for more information on Human health (Toxic effects to mammals) classification (GESAMP, 2014)
  3. 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
  1. 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
  1. 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
  2. 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.