Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 942-932-9 | CAS number: -
Adsorption / desorption
Administrative data
Link to relevant study record(s)
- Endpoint:
- adsorption / desorption: screening
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance and its relevant degradation products decompose rapidly
Reference
Description of key information
The performance of a test for
adsorption/desorption screening is scientifically unjustified.
REACh Regulation No. 1907/2006, Annex VIII, Sect. 9.3.1, Col. 2, states
as follows:
“9.3.1 The study need not be conducted if:
- based on the physicochemical properties the substance can be expected
to have a low potential for adsorption (e.g. the substance has a low
octanol water partition coefficient), or
- the substance and its relevant degradation products decompose rapidly.”
A determination of the biodegradability of the test item was performed
according to OECD 301D, respectively. The test item is evaluated as
ready biodegradable. Thus, determination of adsorption of the test item
is scientifically unjustified and not required under REACH.
Key value for chemical safety assessment
- Koc at 20 °C:
- 4 413
Additional information
A waiver is used to adress the endpoint:
The performance of a test for adsorption/desorption screening is scientifically unjustified.
REACh Regulation No. 1907/2006, Annex VIII, Sect. 9.3.1, Col. 2, states as follows:
“9.3.1 The study need not be conducted if:
- based on the physicochemical properties the substance can be expected to have a low potential for adsorption (e.g. the substance has a low octanol water partition coefficient), or
- the substance and its relevant degradation products decompose rapidly.”
A determination of the biodegradability of the test item was performed according to OECD 301D, respectively. The test item is evaluated as ready biodegradable. Thus, determination of adsorption of the test item is scientifically unjustified and not required under REACH.
Further supporting QSAR calculations were available. The following logKOC values were determined which were representative for the components of the test item:
Monomer: 1.1279 (KOC=13.42 L/kg)
Dimer: 3.6448 (KOC=4413 L/kg)
MIBK: 1.8453 (KOC=70.03 L/kg)
As worst case the dimer KOC value of 4413 L/kg was chosen for this endpoint.
[LogKoc: 3.6448]
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
