Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Administrative data

Endpoint:
distribution modelling
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The reliability rating is 2 because the data are calculated

Data source

Reference
Reference Type:
other: Computer model
Title:
Unnamed
Year:
2000
Report date:
2009

Materials and methods

Model:
other: EPI Suite Level III fugacity model
Calculation programme:
Level III fugacity model
Release year:
2 000
Media:
air - biota - sediment(s) - soil - water

Test material

Constituent 1
Chemical structure
Reference substance name:
Mono-, and di-(sec-hexadecyl)naphthalene
EC Number:
930-936-3
Molecular formula:
C26H40 + C42H72
IUPAC Name:
Mono-, and di-(sec-hexadecyl)naphthalene
Details on test material:
SMILES notation used: CC(c1ccc2ccccc2c1)CCCCCCCCCCCCCC or CC(CCCCCCCCCCCCCC)C2=CC1=C(C=C2)C=CC=C1
These represent SMILES for sec-hexadecylnaphthalene (94247-63-9), major component in mono-, and di-(sec-hexadecyl)naphthalene.

Results and discussion

Percent distribution in media

Air (%):
0.05
Water (%):
1.88
Soil (%):
29
Sediment (%):
69.1
Susp. sediment (%):
0
Biota (%):
0
Aerosol (%):
0

Applicant's summary and conclusion

Conclusions:
The EPI Suite Level III fugacity model estimates that the study substance will partition largely into the sediment compartment (69%), followed by the soil compartment (29%), water compartment (1.9%) and air (0.05%), based on the calculated values from EPI Suite and SMILES input.

Level III fugacity model estimates that the study substance will partition largely mainly into the sediment and soil compartments with very little into water and the least into air.
Executive summary:

The EPA EpiSuite Level III fugacity model estimates that the study substance will partition largely mainly into the sediment and soil compartments with very little into water and the least into air.