Registration Dossier
Registration Dossier
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EC number: 473-730-4 | CAS number: 928768-73-4
Adsorption / desorption
Administrative data
- Endpoint:
- adsorption / desorption: screening
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2006
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: according to EC Directive 92/69/EEC and Regulation EC/440/2008 guideline methods under GLP conditions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 006
- Report date:
- 2006
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.19 (Estimation of the Adsorption Coefficient (KOC) on Soil and Sewage Sludge Using High Performance Liquid Chromatography (HPLC))
- GLP compliance:
- yes
- Type of method:
- HPLC estimation method
Test material
- Reference substance name:
- -
- EC Number:
- 473-730-4
- EC Name:
- -
- Cas Number:
- 928768-73-4
- Molecular formula:
- C13H28SO3
- IUPAC Name:
- 1-Octanol reaction products with epichlorhydrin and 2-mercaptoethanol
- Test material form:
- liquid: viscous
Constituent 1
Study design
HPLC method
- Details on study design: HPLC method:
- The sample, formamide and reference standard solutions were injected in duplicate using the following HPLC parameters:
HPLC System:
Agilent Technologies 1050, incorporating autosampler and workstation
Column:
Phenosphere Next CN 5µ (250 x 4.6 mm id)
Column temperature:
30°C
Mobile phase:
methanol:water (55:45 v/v)
pH of mobile phase:
6.9
Flow-rate:
1 ml/min
UV detector wavelength:
210 nm
Injection volume:
10 µl
Batch equilibrium or other method
- Computational methods:
- Using the Episuite software (Version 3.1 1 June 10th 2003, US EPA 2000) a result of log 10 Koc, 1.00 was obtained.
Results and discussion
Adsorption coefficient
- Type:
- log Koc
- Value:
- 2.77
- Temp.:
- 30 °C
- Remarks on result:
- other: none
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- Koc 593, log Koc 2.77, using the HPLC screening method, Method C19 of Commission Directive 2001/59/EC. However, due to the surfactant properties of the test material, a computer-based estimation of adsorption coefficient may be more reliable. Using the Episuite software (Version 3.1 1 June 10th 2003, US EPA 2000) a result of log 10 Koc, 1.00 was obtained.
- Executive summary:
Koc 593, log Koc 2.77, using the HPLC screening method, Method C19 of Commission Directive 2001/59/EC. However, due to the surfactant properties of the test material, a computer-based estimation of adsorption coefficient may be more reliable. Using the Episuite software (Version 3.1 1 June 10th 2003, US EPA 2000) a result of log 10 Koc, 1.00 was obtained.
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