3-methyl-1-p-tolyl-5-pyrazolone

Particle size distribution (Granulometry)

Administrative data

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2013

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: reliable method (laser light scattering)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2013

Report date:

2013

Materials and methods

Test guideline

Qualifier:

no guideline available

Principles of method if other than guideline:

Laser diffraction particle size measurement

GLP compliance:

not specified

Type of distribution:

volumetric distribution

Test material

Test material information

Constituent 1

Reference substance name:

3-methyl-1-p-tolyl-5-pyrazolone

EC Number:

201-708-4

EC Name:

3-methyl-1-p-tolyl-5-pyrazolone

Cas Number:

86-92-0

Molecular formula:

C11H12N2O

IUPAC Name:

3-methyl-1-p-tolyl-5-pyrazolone

Results and discussion

Particle size

Particle size 1

Percentile:

D50

Mean:

10.1 µm

Remarks on result:

other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.

Particle size 2

Percentile:

D10

Mean:

2.3 µm

St. dev.:

0.1

Particle size 3

Percentile:

D50

Mean:

10.1 µm

St. dev.:

1.3

Particle size 4

Percentile:

D90

Mean:

24.9 µm

St. dev.:

4.3

Any other information on results incl. tables

concentration: 0.0001%

specific surface area: 1.4 m²/g

Applicant's summary and conclusion

Conclusions:

The determined median diameter (D50) amounts to 10.1 µm.

Executive summary:

Particle Size Distribution was measured by Laser Diffraction using a Malvern Mastersizer 2000, unit: Scirocco 2000 apparatus.