tetrakis[({bis[4-(dimethylamino)phenyl] and 4-(methylamino)phenyl} or {4-(dimethylamino)phenyl and bis[4-(methylamino)phenyl]} or {tris[4-(dimethylamino)phenyl]}methylium)]C12-(branched and/or linear)-alkyl-(4-sulfonatophenoxy)benzenesulfonate and oxybis[C12-(branched and/or linear)-alkyl-benzenesulfonate].

Particle size distribution (Granulometry)

Administrative data

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2011

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: The reliability is rated 2 because the study is well documented, meets generally accepted scientific principles. The results were reviewed for reliability and assessed as valid.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2011

Report date:

2011

Materials and methods

Test guideline

Qualifier:

equivalent or similar to guideline

Guideline:

other: SAV. 038: Medianwert-Bestimmung (PartikelgrÖssen-Verteilung)

Principles of method if other than guideline:

Laser diffraction on particles placed in a suspension

GLP compliance:

no

Type of distribution:

volumetric distribution

Test material

Test material information

Constituent 1

Reference substance name:

bis(bis[4-(dimethylamino)phenyl][4-(methylamino)phenyl]methylium) bis(tris[4-(dimethylamino)phenyl]methylium) 3-(dodecan-3-yl)-4-(2-dodecyl-4-sulfonatophenoxy)benzene-1-sulfonate 3-dodecyl-4-(4-sulfonatophenoxy)benzene-1-sulfonate

EC Number:

700-759-4

Molecular formula:

not applicable

IUPAC Name:

bis(bis[4-(dimethylamino)phenyl][4-(methylamino)phenyl]methylium) bis(tris[4-(dimethylamino)phenyl]methylium) 3-(dodecan-3-yl)-4-(2-dodecyl-4-sulfonatophenoxy)benzene-1-sulfonate 3-dodecyl-4-(4-sulfonatophenoxy)benzene-1-sulfonate

Details on test material:

- Name of test material (as cited in study report): Sepisol Fast Violet 881239
- Substance type: organic salt - UVCB
- Appearance/Physical state: Dark violet powder
- Lot/batch No.:016569
- Stability under test conditions:stable
- Storage condition of test material: at ambient temperature

Results and discussion

Particle size

Particle size 1

Percentile:

D50

Remarks on result:

other: not calculated but MMAD is likely to be less than 100 µm(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)

Particle size 2

Percentile:

D90

Mean:

212.5 µm

Particle size 3

Percentile:

D50

Mean:

56.36 µm

Particle size 4

Percentile:

D10

Mean:

6.18 µm

Particle size distribution at different passages

Remarks on result:

other: not determined in this assay

Applicant's summary and conclusion

Conclusions:

The particles size distribution has been determined by laser diffraction. 90% of the particles size stands below 212.5 µm; 50% below 53.36µm and 10% below 6.18 µm. MMAD is expected to be less than 100 µm.