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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 264-150-0 | CAS number: 63449-39-8
Sediment toxicity
Administrative data
- Endpoint:
- sediment toxicity: long-term
- Type of information:
- (Q)SAR
- Adequacy of study:
- key study
- Study period:
- 2009
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
- Justification for type of information:
- Given their physico-chemical properties, including being highly insoluble in water, their use pattern, and the fact that LCCPs did not demonstrate aquatic toxicity up (and in many cases exceeding) their water solubility limites, LCCPs are not expected to present a significant risk to sediment organisms.The equilibrium partitioning approach has been used to estimate effect levels.
Data source
Reference
- Reference Type:
- publication
- Title:
- Environmental Risk Evaluation Report for LCCPs
- Author:
- Environment Agency
- Year:
- 2 009
- Bibliographic source:
- Environment Agency
- Report date:
- 2009
Materials and methods
Test guideline
- Qualifier:
- no guideline required
- Principles of method if other than guideline:
- The equilibrium partitioning model was used to generate these results.
- GLP compliance:
- no
Test material
- Reference substance name:
- Paraffin waxes and Hydrocarbon waxes, chloro
- EC Number:
- 264-150-0
- EC Name:
- Paraffin waxes and Hydrocarbon waxes, chloro
- Cas Number:
- 63449-39-8
- Molecular formula:
- C18H33Cl5 C18H30Cl8 C20H36Cl6 C20H33Cl9 C25H45Cl7 C25H42Cl10 C25H29C23 C30H53Cl9 C30H49Cl13 C30H35Cl27
- IUPAC Name:
- Paraffin waxes and Hydrocarbon waxes (C18 and longer), chloro
- Test material form:
- other: liquid or solid
Constituent 1
- Specific details on test material used for the study:
- Modelled data considering C18-20 liquid LCCP, C20+ liquid LCCP and C20+ solid LCCP
Sampling and analysis
- Analytical monitoring:
- not required
- Remarks:
- Modelled data
Test substrate
- Vehicle:
- no
Test organisms
- Test organisms (species):
- other: Modelled data
Study design
- Study type:
- other: Modelled data
- Test type:
- not specified
- Water media type:
- other: Modelled data
- Type of sediment:
- not specified
- Remarks:
- Modelled data
- Limit test:
- no
Results and discussion
Effect concentrationsopen allclose all
- Dose descriptor:
- other: PNEC
- Effect conc.:
- 5 710 other: mg/kg ww
- Nominal / measured:
- estimated
- Conc. based on:
- test mat.
- Basis for effect:
- other: Modelled data using equilibrium partitioning method
- Remarks on result:
- not measured/tested
- Dose descriptor:
- other: PNEC
- Effect conc.:
- 33 100 other: mg/kg ww
- Nominal / measured:
- estimated
- Conc. based on:
- test mat.
- Basis for effect:
- other: Modelled data using equilibrium partitioning method
- Remarks on result:
- not measured/tested
- Dose descriptor:
- other: PNEC
- Effect conc.:
- 120 000 other: mg/kg ww
- Nominal / measured:
- estimated
- Conc. based on:
- test mat.
- Basis for effect:
- other: Modelled data using equilibrium partitioning method
- Remarks on result:
- not measured/tested
- Details on results:
- PNECsed = (Ksusp-water × PNECwater × 1000)/RHOsusp
where Ksusp-water = suspended matter-water partition coefficient
= 2.27×106 m3/m3 for C18–20 liquid chlorinated paraffin
= 6.93×106 m3/m3 for C>20 liquid chlorinated paraffin
= >2.5×108 m3/m3 for C>20 solid chlorinated paraffin
RHOsusp = bulk density of suspended matter = 1,150 kg/m3
Using this equation, the following PNECsed can be derived:
C18–20 liquid chlorinated paraffin PNECsed = 5,710 mg/kg wet wt.
C>20 liquid chlorinated paraffin PNECsed(screening) = 33,100 mg/kg wet wt.
C>20 solid chlorinated paraffin PNECsed(screening) = >1,200,000 mg/kg wet wt.
Applicant's summary and conclusion
- Conclusions:
- Based on the equilibrium partitioning method, the UK EA (LCCP Environmental Risk Assessment, January 2009) derived the following sediment PNECs for LCCP (based on product type):
C18–20 liquid chlorinated paraffin PNECsed = 5,710 mg/kg wet wt.
C>20 liquid chlorinated paraffin PNECsed(screening) = 33,100 mg/kg wet wt.
C>20 solid chlorinated paraffin PNECsed(screening) = >1,200,000 mg/kg wet wt. - Executive summary:
Based on the equilibrium partitioning method, the UK EA (LCCP Environmental Risk Assessment, January 2009) derived the following sediment PNECs for LCCP (based on product type):
C18–20 liquid chlorinated paraffin PNECsed = 5,710 mg/kg wet wt.
C>20 liquid chlorinated paraffin PNECsed(screening) = 33,100 mg/kg wet wt.
C>20 solid chlorinated paraffin PNECsed(screening) = >1,200,000 mg/kg wet wt.
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.
