Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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 Alkenes, C6-11, hydroformylation products, distn. residues, heavy cracked fraction (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

Constituent 1
Reference substance name:
Alkenes, C6-11 (branched), hydroformylation products, distn. residues, heavy cracked fraction
EC Number:
701-314-7
Molecular formula:
CnH2n+2O2. n=24-33
IUPAC Name:
Alkenes, C6-11 (branched), hydroformylation products, distn. residues, heavy cracked fraction
Specific details on test material used for the study:
Alkenes, C6-11, hydroformylation products, distn. residues, heavy cracked fraction is a UVCB substance consisting of a number of 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). The relevant components are based upon a range of branching of the molecules that make up the dimer and trimer molecules, and again are based on the best available analytical data, and process knowledge.

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:

Alkenes, C6-11, hydroformylation products, distn. residues, heavy cracked fraction is a UVCB substance consisting of a number of 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.