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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
2010-03-15
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:
1,2,3,4-tetrahydronaphthalene
EC Number:
204-340-2
EC Name:
1,2,3,4-tetrahydronaphthalene
Cas Number:
119-64-2
Molecular formula:
C10H12
IUPAC Name:
1,2,3,4-tetrahydronaphthalene
Details on test material:
1,2,3,4-tetrahydronaphthalene as used in studies on input data

Study design

Test substance input data:
- Molar mass: 132.21
-Water solubility: 0.045 g/L
- Vapour pressure: 34 Pa
- log Pow: 3.78
- Melting point: -35.8



Environmental properties:
-Temperature: 20ºC
Volumes, densities, and organic carbon / fat concentration:
Air:         6 000 000 000 m3, 1.206 kg/m3
Water:           7 000 000 m3, 1000 kg/m3
Soil:               45 000 m3, 1500 kg/m3, 2 % OC
Sediment:           21 000 m3, 1300 kg/m3, 5 % OC
Susp. sediment:         35 m3, 1500 kg/m3, 16.7 % OC
Fish:                    7 m3, 1000 kg/m3, 5 % fat
Aerosol:              0.12 m3, 1500 kg/m3

Results and discussion

Percent distribution in media

Air (%):
94.644
Water (%):
2.694
Soil (%):
1.319
Sediment (%):
1.334
Susp. sediment (%):
0.009
Biota (%):
0.001
Aerosol (%):
0

Applicant's summary and conclusion

Conclusions:
According to a Mackay Level I model calculation the main target compartment for 1,2,3,4-tetrahydronaphthalene will be the atmosphere (94.6 %) followed by the hydrosphere (2.7 %), sediment and soil (1.3 % each).
Executive summary:

The distribution among different compartments of 1,2,3,4 -tetrahydronaphthalene was explored through the Mackay level I model calculations. According to this calculation the main target compartment for 1,2,3,4-tetrahydronaphthalene will be the atmosphere (94.6 %) followed by the hydrosphere (2.7 %), sediment and soil (1.3 % each).