Registration Dossier

Administrative data

Endpoint:
adsorption / desorption: screening
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Study period:
2019
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1991

Materials and methods

Principles of method if other than guideline:
Calculation method as listed under 'computational methods' field as described in cited 'reference'. Calculation performed for constituents of 1,2-Benzenedicarboxylic acid, isodecyl ester, manuf. of, by-products from (see "specific details on test material'). Results attached document in field 'background material'
GLP compliance:
no
Type of method:
other: calculation
Media:
other: organic carbon

Test material

Reference
Name:
Unnamed
Specific details on test material used for the study:
1,2-Benzenedicarboxylic acid, isodecyl ester, manuf. of, by-products from is a UVCB substance consisting of a number of hydrocarbon and oxygenated hydrocarbon components, covering a wide range of carbon numbers and structures, each with their own log Koc value. The relevant components were determined based on the best available analytical data and process knowledge (see dossier sections 1.2 Composition and 1.4 Analytical methods).

Study design

Batch equilibrium or other method

Computational methods:
logKOC = 0.98 logKOW + 0.00028

Results and discussion

Adsorption coefficient
Type:
log Koc
Remarks on result:
other: constituent results attached, see field 'background material'

Any other information on results incl. tables

Predicted log Koc values for relevant components of the substance are available in the attached file.

Applicant's summary and conclusion

Executive summary:

1,2-Benzenedicarboxylic acid, isodecyl ester, manuf. of, by-products from is a UVCB substance consisting of a number of hydrocarbon and oxygenated hydrocarbon components, covering a wide range of carbon numbers and structures, each with their own log Koc value. Log Koc values for relevant components were calculated using the formula developed by Di Toro et al (1991) . The relevant components were determined based on the best available analytical data and process knowledge (see dossier sections 1.2 Composition and 1.4 Analytical methods). As part of the endpoint evaluation for sediment and terrestrial toxicity, an exposure assessment was performed using representative constituents, and RCR values of the individual constituents were summed to estimate the RCR values for the registered substance. RCR values below 1 were calculated for soil, freshwater and marine sediments, indicating a low level of risk to these environmental compartments. As such, modeled data are considered fit for purpose.