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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2019
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
other: CIPAC MT 187
GLP compliance:
no
Type of method:
Laser scattering/diffraction

Test material

Constituent 1
Chemical structure
Reference substance name:
4-(2-{2,4-dihydroxy-5-[2-(4-hydroxyphenyl)propan-2-yl]phenyl}propan-2-yl)phenyl 6-(-lambda5-diazynylidene)-5-oxo-5,6-dihydronaphthalene-1-sulfonate
Molecular formula:
C34H30N2O7S
IUPAC Name:
4-(2-{2,4-dihydroxy-5-[2-(4-hydroxyphenyl)propan-2-yl]phenyl}propan-2-yl)phenyl 6-(-lambda5-diazynylidene)-5-oxo-5,6-dihydronaphthalene-1-sulfonate
Constituent 2
Chemical structure
Reference substance name:
4-[2-(2,4-dihydroxy-5-{2-[4-({[6-(-lambda5-diazynylidene)-5-oxo-5,6-dihydronaphthalen-1-yl]sulfonyl}oxy)phenyl]propan-2-yl}phenyl)propan-2-yl]phenyl 6-(-lambda5-diazynylidene)-5-oxo-5,6-dihydronaphthalene-1-sulfonate
Molecular formula:
C44H34N4O10S2
IUPAC Name:
4-[2-(2,4-dihydroxy-5-{2-[4-({[6-(-lambda5-diazynylidene)-5-oxo-5,6-dihydronaphthalen-1-yl]sulfonyl}oxy)phenyl]propan-2-yl}phenyl)propan-2-yl]phenyl 6-(-lambda5-diazynylidene)-5-oxo-5,6-dihydronaphthalene-1-sulfonate
Details on test material:
PW19F16

Results and discussion

Particle sizeopen allclose all
Percentile:
D10
Mean:
3.77 µm
St. dev.:
0.71
Percentile:
D50
Mean:
12.54 µm
St. dev.:
1.29
Percentile:
D90
Mean:
177.37 µm
St. dev.:
41.57

Applicant's summary and conclusion

Conclusions:
The results show that 10 % of all particles of the test item were smaller than 3.77 µm, 50 % were smaller than 12.54 µm and 90 % were smaller than 177.37 µm (mean value of 5 measurements per test sample).