Registration Dossier

Environmental fate & pathways

Adsorption / desorption

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Administrative data

Endpoint:
adsorption / desorption
Remarks:
adsorption
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
Accepted calculation method Hypothesis and analogue approach for read-across: This substance (S-Ethanol, composition 2) has degree of ethanol purity between 76 - 82%. Methanol is the main impurity of the target substance (conc. 13-14 %), and considered the major driver for adverse effects based on its properties and relative quantity in the substance. Therefore, testing of the substance itself was considered unnecessary. Instead the available REACH registration data of ethanol and methanol is used in order to update the chemical safety assessment of this substance. Other impurities of this substance are taken into account for self-classification, but there is no need to consider their properties in hazard assessment because of low concentrations (see IUCLID section 1.2; composition 2).

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2004
Report Date:
2004

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
PCKOCWIN v1.66 calculation, EPA for EPI suite, 2000
GLP compliance:
no
Type of method:
other: calculation
Media:
soil

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): Methanol
- Analytical purity: no data
Radiolabelling:
no

Study design

Batch equilibrium or other method

Analytical monitoring:
no

Results and discussion

Adsorption coefficient
Type:
Koc
Value:
1

Any other information on results incl. tables

The very low value of the estimated Koc indicates no significant adsorption of methanol on soils.

Applicant's summary and conclusion