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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Test was conducted according to ECHA Guidance R.7a.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013
Report date:
2013

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: ECHA(11/2012), Guidance on information requirements and chemical safety assessement, Chapter R. 7a: Endpoint specific guidance section R.7.1.14 Granulometry, page 120-131
GLP compliance:
no
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
2-hydroxy-1-{3-[4-(2-hydroxy-2-methylpropanoyl)phenyl]-1,1,3-trimethyl-2,3-dihydro-1H-inden-5-yl}-2-methylpropan-1-one
EC Number:
700-676-3
Cas Number:
135452-42-5
Molecular formula:
C26H32O4
IUPAC Name:
2-hydroxy-1-{3-[4-(2-hydroxy-2-methylpropanoyl)phenyl]-1,1,3-trimethyl-2,3-dihydro-1H-inden-5-yl}-2-methylpropan-1-one
Constituent 2
Reference substance name:
1-Propanone, 1-[2,3-dihydro-3-[4-(2-hydroxy-2-methyl-1-oxopropyl)phenyl]-1,1,3-trimethyl-1H-inden-5-yl]-2-hydroxy-2-methyl-
IUPAC Name:
1-Propanone, 1-[2,3-dihydro-3-[4-(2-hydroxy-2-methyl-1-oxopropyl)phenyl]-1,1,3-trimethyl-1H-inden-5-yl]-2-hydroxy-2-methyl-
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Mean:
52.89 µm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D10
Mean:
20.45 µm
Percentile:
D50
Mean:
52.89 µm
Percentile:
D90
Mean:
80.28 µm
Particle size distribution at different passagesopen allclose all
Size:
5 - 10 µm
Distribution:
0.82 %
Size:
10 - 15 µm
Distribution:
0.53 %
Size:
15 - 20 µm
Distribution:
0.81 %
Size:
20 - 37 µm
Distribution:
9.99 %
Size:
37 - 44 µm
Distribution:
10.84 %
Size:
44 - 60 µm
Distribution:
35.51 %
Size:
60 - 74 µm
Distribution:
19.85 %
Size:
74 - 149 µm
Distribution:
13.84 %

Any other information on results incl. tables

0.20 – 0.50 µm: 0.05 %

0.50 – 1.00 µm: 2.22 %

149.00 – 200.00 µm: 0.08 %

200.00 – 350.00 µm: 0.00 %

Applicant's summary and conclusion

Conclusions:
Mass median diameter of the particles of the substance: 52.89 µm