2-methylbenzene-1,4-diyl bis{4-[3-(acryloyloxy)propoxy]benzoate}

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:

12 MAR 2010 - 03 AUG 2010

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 B: Fibre Length and Diameter Distributions

Version / remarks:

1981

Deviations:

no

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)

Deviations:

no

Qualifier:

according to guideline

Guideline:

ISO 13320 (Particle size analysis - Laser diffraction methods)

Version / remarks:

13320-1

Deviations:

no

Qualifier:

according to guideline

Guideline:

other: CIPAC MT 187

Deviations:

no

GLP compliance:

no

Remarks:

not necessary

Type of method:

Laser scattering/diffraction

Type of distribution:

volumetric distribution

Percentile:

D50

Mean:

9.8 µm

Remarks on result:

other: no standard deviation available

Percentile:

D10

Mean:

2 µm

Remarks on result:

other: no standard deviation available

Percentile:

D90

Mean:

167.77 µm

Remarks on result:

other: no standard deviation available

Visual inspection of the sample showed an irregular morphology.

The particle size distribution is bimodal.

For each test series fractions (left axis of the ordinate) and the sittings (right axis of the ordinate) are presented in volume % as a function of the particle size.

The median particle size L₅₀ (D (v, 0.5): 50 % of particle volume or particle mass with lower particle diameter) deduced from these distributions are:

1^st test series: L₅₀ = 9 .839 µm

2^nd test series: L₅₀ = 9.689 µm

The average of the median particle size L₅₀ is L₅₀ = 9.76 µm

The particle size L₁₀ (D (v, 0.1): 10 % of particle volume or particle mass with lower particle diameter) deduced from these distributions are:

1^st test series: L₁₀ = 2.007 µm

2^nd test series: L₁₀ = 1.988 µm

The average of the particle size L₁₀ is L₁₀ = 2.00 µm

The particle size L₉₀ (D (v, 0.9): 90 % of particle volume or particle mass with lower particle diameter) deduced from these distributions are:

1^st test series: L₉₀ = 173.118 µm

2^nd test series: L₉₀ = 162.422 µm

The average of the particle size L₉₀ is L₉₀ = 167.77 µm

Conclusions:

The median particle size L50 of the test items deduced from the particle size distributions is 9.8 µm.
The particle size L10 of the test items deduced from the particle size distributions is 2.0 µm.
The particle size L90 of the test items deduced from the particle size distributions is 167.77 µm.

Executive summary:

The particle size of the test item was determined according to OECD Guideline 110, OPPTS 830.7520, CIPAC MT 187 and ISO 13320 -1, not under GLP, by laser diffraction (light scattering).

The median particle size L50 of the test items deduced from the particle size distributions is 9.8 µm.

The particle size L10 of the test items deduced from the particle size distributions is 2.0 µm.

The particle size L90 of the test items deduced from the particle size distributions is 167.77 µm.

Description of key information

The particle size of the test item was determined according to OECD Guideline 110, OPPTS 830.7520, CIPAC MT 187 and ISO 13320 -1, not under GLP by laser diffraction (light scattering).

The median particle size L50 of the test items deduced from the particle size distributions is 9.8 µm.

The particle size L10 of the test items deduced from the particle size distributions is 2.0 µm.

The particle size L90 of the test items deduced from the particle size distributions is 167.77 µm.