Registration Dossier

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:
August 2, 2016 - August 8, 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report Date:
2016

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: CIPAC MT 59 Sieve Analysis
Version / remarks:
CIPAC Handbook F, p.177, 1995
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
sieving
Type of particle tested:
primary particle
Type of distribution:
mass based distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
impurity
Test material form:
solid: particulate/powder
Details on test material:
Batch No.: 2016JAN-15kg
Expiry Date: 01 January 2020
Appearance: Blue-white powder
Storage: Room temperature (15-25°C)
Safety precautions: Routine safety precautions (lab coat, gloves, safety glasses, face mask) for unknown materials were applied to assure personnel health and safety.
Specific details on test material used for the study:
Batch No.: 2016JAN-15kg
Expiry Date: 01 January 2020
Appearance: Blue-white powder
Storage: Room temperature (15-25°C)

Results and discussion

Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
> 500 µm
Distribution:
3.1 %
Remarks on result:
other: m/m %
No.:
#2
Size:
> 250 - < 500 µm
Distribution:
84.06 %
No.:
#3
Size:
> 125 - < 250 µm
Distribution:
9.69 %
No.:
#4
Size:
> 100 - < 125 µm
Distribution:
1.41 %
No.:
#5
Size:
> 75 - < 100 µm
Distribution:
0.77 %
No.:
#6
Size:
> 63 - < 75 µm
Distribution:
0.04 %
No.:
#7
Size:
> 45 - < 63 µm
Distribution:
0.05 %

Any other information on results incl. tables

The particle size distribution of Neodymium fluoride oxide, magnesium doped was found to be a range between 125 μm and 500 μm after 5 min sieving.

Applicant's summary and conclusion

Conclusions:
The particle size distribution of Neodymium fluoride oxide, magnesium doped was found to be a range between 125 μm and 500 μm after 5 min sieving.
Executive summary:

Machine sieving test was carried out using the following test sieves 500, 250, 125, 100, 75, 63 and 45 μm.

The particle size distribution of Neodymium fluoride oxide, magnesium doped was found to be a range between 125 μm and 500 μm after 5 min sieving.