Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
2010-06-10
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Accepted calculation method

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

Model:
calculation according to Mackay, Level I
Calculation programme:
Self-made, equivalent to level I V. 2.11 with standard settings
Release year:
2 010
Media:
air - biota - sediment(s) - soil - water

Test material

Constituent 1
Chemical structure
Reference substance name:
Decahydronaphthalene
EC Number:
202-046-9
EC Name:
Decahydronaphthalene
Cas Number:
91-17-8
Molecular formula:
C10H18
IUPAC Name:
decahydronaphthalene
Details on test material:
decahydronaphthalene as used in studies on input data

Study design

Test substance input data:
Molecular weight:      138.26 g/mol
log Kow:                  4.20
Vapour pressure:       106.4 Pa
Water solubility:        0.000889 g/L
Melting point:         -40.0 °C
Environmental properties:
Air:         6 000 000 000 m3, 1.206 g/m3
Water:           7 000 000 m3, 1.0 g/m3
Soil:               45 000 m3, 1.5 g/m3,  2.0 % OC
Sediment:           21 000 m3, 1.3 g/m3,  5.0 % OC
Susp. Sediment:         35 m3, 1.5 g/m3, 16.7 % OC
Fish:                    7 m3, 1.0 g/m3,  5.0 % fat
Aerosol:              0.12 m3, 1.5 g/m3

Temperature:           20 °C

Results and discussion

Percent distribution in media

Air (%):
99.861
Water (%):
0.039
Soil (%):
0.05
Sediment (%):
0.05
Susp. sediment (%):
0
Biota (%):
0
Aerosol (%):
0

Applicant's summary and conclusion

Conclusions:
According to a Mackay level I calculation decahydronaphtalene will be distributed almost exclusively to the atmosphere (99.86 %) while distribution to other compartments is negligible (< 0.1 %).
Executive summary:

The distribution among different compartments of decahydronaphthalene was explored through the Mackay level I model calculations. The results indicate that the relevant compartment for this chemical is the atmosphere, representing 99.86 % of the distribution. Dissipation to other compartments is negligible (< 0.1 %).