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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:
25.06.2012 to 09.11.2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study according to GLP guideline

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2012

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
methyl (2R)-2-amino-3-(1H-indol-3-yl)propanoate hydrochloride
EC Number:
639-469-7
Cas Number:
14907-27-8
Molecular formula:
C12H15ClN2O2
IUPAC Name:
methyl (2R)-2-amino-3-(1H-indol-3-yl)propanoate hydrochloride

Results and discussion

Particle size
Percentile:
D50
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

Result (diameter) d10 - d50 - d90 - dmean - Standard deviation

1st Measurement 7.084 µm - 33.99 µm - 121 .21 µm - 50.27 µm - 53.29 µm

2nd Measurement 7.063 µm - 33.31 µm - 125.1 µm - 51.47 µm - 58.59 µm

3rd Measurement 7.133 µm - 32.57 µm - 140.9 µm - 54.48 µm - 62.35 µm

Average: 7.09 µm - 33.3 µm - 129.1 µm - 52.07 µm - 58.1 µm

Standard deviation: 0.04 µm - 0.71 µm - 10.43 µm ----- -----

Applicant's summary and conclusion

Conclusions:
The particle size distribution (volume distribution) of the test item in an air stream was measured by Iaser diffraction.
The average of three measurements is: d10: 7.09 µm, d50: 33.3 µm, d90: 129.1 µm, d mean: 52 .07 µm