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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
2008
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report date:
2008

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: SOP_Pulverrinne_3 bar_gs:air
Deviations:
not applicable
Principles of method if other than guideline:
Standard operating prodedure: Pulverrinne 3 bar_gs: air
Apparatus: Mastersizer 2000, unit: Scirocco 2000
GLP compliance:
not specified
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
4'-chloro-2',5'-dimethoxyacetoacetanilide
EC Number:
224-638-6
EC Name:
4'-chloro-2',5'-dimethoxyacetoacetanilide
Cas Number:
4433-79-8
Molecular formula:
C12H14ClNO4
IUPAC Name:
N-(4-chloro-2,5-dimethoxyphenyl)-3-oxobutanamide

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Mean:
62.2 µm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D10
Mean:
4.2 µm
St. dev.:
0.2
Percentile:
D50
Mean:
62.2 µm
St. dev.:
8.3
Percentile:
D90
Mean:
349.7 µm
St. dev.:
82.8

Applicant's summary and conclusion

Executive summary:

The median value D50 for the particle size distribution of the substance is 62.2 µm determind with Malvern Mastersizer 2000; unit Scirocco 2000, distribution in air