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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2022
Report date:
2022

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: US Pharmacopoeia 786; Ph. Eur. 2.9.38
GLP compliance:
no
Other quality assurance:
other:
Type of method:
sieving
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
(4aR,4bS,6aS,7S,7aS,8aS,8bS,8cR)-4a,6a-dimethyl-4,4a,4b,6,6a,7a,8,8a,8b,8c-decahydro-3H,3'H-spiro[cyclopropa[4,5]cyclopenta[1,2-a]phenanthrene-7,2'-furan]-2,5(4H,5H)-dione
Cas Number:
67372-69-4
Molecular formula:
C23H28O3
IUPAC Name:
(4aR,4bS,6aS,7S,7aS,8aS,8bS,8cR)-4a,6a-dimethyl-4,4a,4b,6,6a,7a,8,8a,8b,8c-decahydro-3H,3'H-spiro[cyclopropa[4,5]cyclopenta[1,2-a]phenanthrene-7,2'-furan]-2,5(4H,5H)-dione
Test material form:
solid: particulate/powder

Results and discussion

Particle sizeopen allclose all
Key result
Percentile:
other: 1.0%
Mean:
> 1 000 µm
Remarks on result:
not determinable because of methodological limitations
Key result
Percentile:
other: 0.6%
Mean:
>= 710 - <= 1 000 µm
Remarks on result:
not determinable because of methodological limitations
Key result
Percentile:
other: 2.4%
Mean:
>= 500 - <= 710 µm
Remarks on result:
not determinable because of methodological limitations
Key result
Percentile:
other: 9.8%
Mean:
355 - 500 µm
Remarks on result:
not determinable because of methodological limitations
Key result
Percentile:
other: 10.4%
Mean:
>= 250 - <= 355 µm
Remarks on result:
not determinable because of methodological limitations
Key result
Percentile:
other: 15.6%
Mean:
>= 180 - <= 250 µm
Remarks on result:
not determinable because of methodological limitations
Key result
Percentile:
other: 20.8%
Mean:
>= 140 - <= 180 µm
Remarks on result:
not determinable because of methodological limitations
Key result
Percentile:
other: 30.7%
Mean:
>= 100 - <= 140
Remarks on result:
not determinable because of methodological limitations
Key result
Percentile:
other: 8.6%
Mean:
>= 63 - <= 100 µm
Remarks on result:
not determinable because of methodological limitations
Key result
Percentile:
other: 0%
Mean:
< 63 µm
Remarks on result:
not determinable because of methodological limitations

Applicant's summary and conclusion