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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Report date:
2012

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Microtrac S3500-Turbotrac (Laser difraction method)

Test material

Constituent 1
Chemical structure
Reference substance name:
1,7-bis(4-hydroxy-3-methoxyphenyl)heptane-3,5-dione
Cas Number:
36062-04-1
Molecular formula:
C21H24O6
IUPAC Name:
1,7-bis(4-hydroxy-3-methoxyphenyl)heptane-3,5-dione
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder

Results and discussion

Mass median aerodynamic diameter:
> 41.3 - <= 41.4 µm
Particle sizeopen allclose all
Percentile:
D50
Mean:
ca. 41.3 - <= 41.4 µm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D50
Mean:
> 41.3 - <= 41.4 µm
Particle size distribution at different passages
Size:
> 41.3 - <= 41.4 µm
Distribution:
> 0.01 - <= 0.1 %

Applicant's summary and conclusion