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Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

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

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
other: Guidance Document on the Determination of Particle Size Distribution, Fibre Length and Diameter Distribution of Chemical Substances, EUR 20268 EN (2002)
Deviations:
no
Qualifier:
according to
Guideline:
other: Standard ISO 13320: 2009 Particle size analysis – Laser diffraction methods, First edition 2009-10-01
Deviations:
no
GLP compliance:
not specified
Type of distribution:
volumetric distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
- Name of test material (as cited in study report): 2-methoxy-5-nitrophenyl acetate

- Lot/batch No.: 102014
- Expiration date of the lot/batch: unlisted

- Stability under test conditions: unlisted
- Storage condition of test material: The test substance should be stored in dry room in dark in closed container at the room temperature. Maximal storage temperature is 40°C.

Results and discussion

Particle size
Percentile:
D50
Mean:
12.4 µm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.

Any other information on results incl. tables

 Determination  Median (μm)   Diamater on Cumulative 90 % (μm)   Diamater on Cumulative 10 % (μm)  Span (-)
 1  12.5  60.4  6.5  4.3
 2  12.4  60.9  6.9q  4.3
 3  12.4  62.5  6.8  4.5
 4  12.2  55.9  6.7  4.0
 5  12.5  64.6  6.7  4.6
 6  12.1  53.5  6.7  3.9
 Average  12.4  59.6  6.7  4.3
 Standard dev  0.2  4.2  0.1  0.3
 Extended uncert  0.4  8.4  0.2  -

Applicant's summary and conclusion

Executive summary:

The particle size distribution of the test substance, 2-methoxy-5-nitrophenyl acetate was determined. The laser diffraction method was used.

The procedures used in the study were in accordance with:

Guidance Document on the Determination of Particle Size Distribution, Fibre Length and Diameter Distribution of Chemical Substances, EUR 20268 EN (2002).

Standard ISO 13320: 2009 Particle size analysis – Laser diffraction methods, First edition 2009-10-01.

Particle size distribution of test substance, 2-methoxy-5-nitrophenyl acetate, is characterized by the following table:

Determination  Median (microm)  Diameter on Cumulative 90% microm)  Diameter on Cumulative 10% microm)  Span(-) 
Final result  12.4 60.9 6.9 4.3
Extended uncertainty  0.4  8.4 0.2  - 

Extended uncertainty was calculated by using a coverage factor of 2.