Registration Dossier
Registration Dossier
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EC number: 905-459-9 | CAS number: -
Adsorption / desorption
Administrative data
Link to relevant study record(s)
- Endpoint:
- adsorption / desorption: screening
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: The study was conducted using a documented method and in compliance with GLP.
- 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))
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- HPLC estimation method
- Media:
- soil/sewage sludge
- Radiolabelling:
- no
- Type:
- log Koc
- Value:
- 3.8
- Temp.:
- 30 °C
- Remarks on result:
- other: Recorded temperature was column temperature.
- Endpoint:
- adsorption / desorption
- Remarks:
- adsorption
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: generally accepted calculation method
- Type of method:
- other: calculation
- Media:
- soil
- Type:
- Koc
- Value:
- 4 036
- Type:
- log Koc
- Value:
- 3.606
- Conclusions:
- The calculated soil sorption coefficient Koc=4036 of m- and p-diisopropylbenzene indicates a strong sorption onto soil organic matter.
- Executive summary:
The soil sorption coefficient Koc of diisopropylbenzene was calculated using EPIWIN v3.20, PCKOCWIN v1.66. The calculation yielded a value of 4036 (log Koc=3.606) indicating a strong sorption onto soil organic matter.
- Endpoint:
- adsorption / desorption
- Remarks:
- adsorption
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: peer-reviewed data bank
- GLP compliance:
- not specified
- Type of method:
- other: calculation
- Media:
- soil
- Type:
- Koc
- Value:
- 4 000
- Conclusions:
- The calculation of Koc based on molecular connectivity indexes yielded a value of 4000 and indicates that a strong sorption of diisopropylbenzene onto soil organic matter is to be expected.
- Executive summary:
In the peer-reviewed data bank, a calculated soil sorption coefficient Koc=4000 is reported. The calculation is based on molecular connectivity indexes according to Sabljic A (1987) Environ Sci Technol 21, 358 -366. Based on the estimated Koc, a strong sorption of diisopropylbenzene onto soil organic matter is to be expected.
Referenceopen allclose all
Description of key information
The soil sorption coefficient Koc of p-diisopropylbenzene was estimated by EC HPLC method to be logKoc = 3.8.
Calculation using EPIWIN v3.20, PCKOCWIN v1.66 yielded a value of 4036 (log Koc=3.606).The calculation of Koc based on molecular connectivity indexes yielded a value of 4000 and indicates that a sorption of diisopropylbenzene onto soil organic matter is to be expected.
Key value for chemical safety assessment
- Koc at 20 °C:
- 6 310
Additional information
Reliable data obtained via EC guideline and supported by calculations.
[LogKoc: 3.8]
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