1-Methyl-4-[(trans,trans)-4'-propyl[1,1'-bicyclohexyl]-4-yl] -benzene

Particle size distribution (Granulometry)

Link to relevant study record(s)

Reference

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

July 04, 2019

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)

Deviations:

no

Qualifier:

according to guideline

Guideline:

ISO 13320 (Particle size analysis - Laser diffraction methods)

Deviations:

no

Qualifier:

according to guideline

Guideline:

other: CIPAC MT 187: Particle Size Analysis by Laser Diffraction

Deviations:

no

GLP compliance:

no

Type of method:

Laser scattering/diffraction

Type of particle tested:

agglomerate

Type of distribution:

volumetric distribution

Specific details on test material used for the study:

The sample was tested as received. No further preliminary treatment such as drying or milling was performed.

Key result

Percentile:

D50

Mean:

165.7 µm

Remarks on result:

other: no SD reported

Percentile:

D10

Mean:

59.73 µm

Remarks on result:

other: no SD reported

Percentile:

D90

Mean:

701.2 µm

Remarks on result:

other: no SD reported

The median particle size D50 (D (v, 0.5): 50 % of particle volume or particle mass with lower particle diameter) deduced from these distributions were:

1st test series: D50 = 166.4 µm

2nd test series: D50 = 165.0 µm

The average of the median particle size D50 was: D50 = 165.7 µm

The particle size D10 (D (v, 0.1): 10% of particle volume or particle mass with lower particle diameter) deduced from these distributions were:

1st test series: D10 = 59.55 µm

2nd test series: D10 = 59.91 µm

The average of the particle size D10 was: D10 = 59.73 µm

The particle size D90 (D (v, 0.9): 90 % of particle volume or particle mass with lower particle diameter) deduced from these distributions were:

1st test series: D90 = 739.6 µm

2nd test series: D90 = 662.9 µm

The average of the particle size D90 was: D90 = 701.2 µm

The maximum was observed at approximately 100 µm. Additionally a weak shoulder was observed at approximately 10 µm and 500 µm.

Final results

The median particle size D50 of the test item deduced from the particle size distributions was 165.7 µm.

The particle size D10 of the test item deduced from the particle size distributions was 59.73 µm.

The particle size D90 of the test item deduced from the particle size distributions was 701.2 µm.

Conclusions:

The median particle size D10, D50 and D90 were determined to be 59.73 µm, 165.7 µm and 701.2 µm, respectively. 

Executive summary:

The particle size distribution of the test item is determined by laser diffraction (light scattering) according to OECD TG 110 and ISO13320:2009.The light from a low power Helium-Neon laser is used to form a collimated and monochromatic beam of light.The beam of light is known as the analyser beam and any particles present within this beam will scatter this laser light.The test item was tested as a liquid dispersion in demineralized water (with 1 % detergent). Before the measurement the test item was mixed with demineralized water (with 1 % detergent) and homogenised. This homogenised dispersion was fed to the sample unit, which was filled with demineralized water (with 1 % detergent).Two test series of three measurements each were performed. The median particle size D50 of the test item deduced from the particle size distributions was 165.7 µm. The particle size D10 of the test item deduced from the particle size distributions was 59.73 µm. The particle size D90 of the test item deduced from the particle size distributions was 701.2 µm.

Description of key information

The median particle size D10, D50 and D90 were determined to be 59.73 µm, 165.7 µm and 701.2 µm, respectively. 

Additional information

The particle size distribution of the test item is determined by laser diffraction (light scattering) according to OECD TG 110 and ISO13320:2009.The light from a low power Helium-Neon laser is used to form a collimated and monochromatic beam of light.The beam of light is known as the analyser beam and any particles present within this beam will scatter this laser light.The test item was tested as a liquid dispersion in demineralized water (with 1 % detergent).Before the measurement the test item was mixed with demineralized water (with 1 % detergent) and homogenised. This homogenised dispersion was fed to the sample unit, which was filled with demineralized water (with 1 % detergent).Two test series of three measurements each were performed. The median particle size D50 of the test item deduced from the particle size distributions was 165.7 µm. The particle size D10 of the test item deduced from the particle size distributions was 59.73 µm. The particle size D90 of the test item deduced from the particle size distributions was 701.2 µm.