Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Well performed study according to accepted standard

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report date:
2015

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: ISO 13320-1
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium bis[3-[[1-(3-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-4-hydroxy-N-methylbenzenesulphonamidato(2-)]cobaltate(1-)
EC Number:
275-863-1
EC Name:
Sodium bis[3-[[1-(3-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-4-hydroxy-N-methylbenzenesulphonamidato(2-)]cobaltate(1-)
Cas Number:
71701-14-9
Molecular formula:
C34H28Cl2CoN10O8S2.Na
IUPAC Name:
Cobaltate(1-), bis[3-[2-[1-(3-chlorophenyl)-4,5-dihydro-3-methyl-5-(oxo-kO)-1H-pyrazol-4-yl]diazenyl-kN1]-4-(hydroxy-kO)-N-methylbenzenesulfonamidato(2-)]-, sodium (1:1)

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Mean:
3.1 µm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D10
Mean:
0.9 µm
St. dev.:
0.05
Percentile:
D50
Mean:
3.1 µm
St. dev.:
0.4
Percentile:
D90
Mean:
12.1 µm
St. dev.:
2.6

Applicant's summary and conclusion

Conclusions:
The mass median diameter of the volumetric paticle size distribution is 3.1 µm.
Executive summary:

The volumetric particle size distribution of the substance was determined according to ISO 13320 -1 with Malvern Mastersizer 2000 equipment and the unit Scirocco 2000. The mass median diameter of the volumetric paticle size distribution was found to be 3.1 µm.