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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2014
Report date:
2014

Materials and methods

Test guideline
Qualifier:
no guideline required
Principles of method if other than guideline:
Light microscopy measurement (digital microscope consisting of the main unit VHX-1000 D, the camera unit VHX-1100 and a zoom objective VH-Z250R; Keyence Corp., Osaka, Japan) - 203 particles were measured for the diameter
GLP compliance:
yes
Type of distribution:
counted distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
2-{phenyl[2-(tetradecanoyloxy)phenyl]methyl}phenyl tetradecanoate
EC Number:
941-526-9
Molecular formula:
C47H68O4
IUPAC Name:
2-{phenyl[2-(tetradecanoyloxy)phenyl]methyl}phenyl tetradecanoate
Test material form:
solid: particulate/powder
Remarks:
migrated information: particulates

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D10
Mean:
> 3.93 - < 3.95 µm
Percentile:
D50
Mean:
> 9.33 - < 9.35 µm
Percentile:
D90
Mean:
> 65.03 - < 65.05 µm

Any other information on results incl. tables

Number-weighted diameter of the test item: Geometric mean = 11.79; calculated aerodynamic diameter: 9.3 µm

Applicant's summary and conclusion

Conclusions:
Geometric mean: 11.79 µm; calculated aerodynamic diameter: 9.3 µm --> Test item is practically not respirable.