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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: generally accepted calculation method (calculation not available), the data, however, were evaluated in the frame of the OECD SIDS program and therefore regarded as valid

Data source

Reference
Title:
No information
Author:
Chemicals Evaluation and Research Institute (CERI) Tokyo

Materials and methods

Model:
calculation according to Mackay, Level III
Media:
air - biota - sediment(s) - soil - water

Test material

Constituent 1
Chemical structure
Reference substance name:
Reaction mass of 1,3-diisopropylbenzene and 1,4-diisopropylbenzene
EC Number:
905-459-9
Molecular formula:
C12H18
IUPAC Name:
Reaction mass of 1,3-diisopropylbenzene and 1,4-diisopropylbenzene

Results and discussion

Any other information on results incl. tables

m-Diisopropylbenzene is as follows:
************************************************************
Compartment	        Release:
       100 %  to air   100 % to water   100 % to soil
************************************************************
Air      99.1            1.0              1.9
Water    0.0             22.6             0.0 
Soil     0.9             0.0              98.1 
Sediment 0.0             76.4             0.0 
************************************************************

p-Diisopropylbenzene is as follows:
************************************************************
Compartment	        Release:
        100 %  to air   100 % to water   100 % to soil
************************************************************
Air	  99.0          1.2              2.4 
Water	  0.0           19.6             0.0 
Soil	  1.0           0.0              97.6 
Sediment  0.0           79.2             0.0

Applicant's summary and conclusion

Conclusions:
According to the Mackay Level III calculation, the main target compartment of the distribution is air (ca. 99%) if the chemical is released into the air. If the chemical is released to the hydrosphere, the main target compartments are water (ca. 20 -23%) and sediment (ca. 75 -80%) and if the chemical is released to soil, the chemical remains predominantly in the soil compartment (ca. 98%).
Executive summary:

According to the Mackay Level III calculations, the main target compartment of the distribution is air (ca. 99%) if the chemical is released into the air. If the chemical is released to the hydrosphere, the main target compartments are water (ca. 20 -23%) and sediment (ca. 75 -80%) and if the chemical is released to soil, the chemical remains predominantly in the soil compartment (ca. 98%).