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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Measurements are performed in an experienced laboratory under supervision of an expert on several samples of the production of the applicant

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2000
Report Date:
2000

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Laserdiffration measurement with dry airflow dispersion
GLP compliance:
no
Type of distribution:
volumetric distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
representative material of the production of the applicant
Diphosphorus pentaoxide (hexagonal form) content > 99,5%
Arsenic content chemically bonded as unknown mix oxide, < 200ppm
virtual diphosphorus trioxid content, < 200ppm
representing a low oxygen content by an unknown mixture of several possible low order phosphorus oxides

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D10
Mean:
0.8 µm
St. dev.:
0.05
Percentile:
other: 16
Mean:
1 µm
St. dev.:
0.1
Percentile:
D50
Mean:
2.9 µm
St. dev.:
0.7
Percentile:
other: 70
Mean:
4.9 µm
St. dev.:
1.3
Percentile:
D90
Mean:
9.7 µm
St. dev.:
3.4

Any other information on results incl. tables

d10 d16 d50 d70 d84 d90
[µm] [µm] [µm] [µm] [µm] [µm]
  average  0,796 0,994 2,900 4,909 7,453 9,736
varianz 0,049 0,100 0,690 1,274 2,157 3,376
measurement No
1 0,72 0,85 1,97 3,14 4,61 5,73
2 0,73 0,86 2,06 3,36 5,05 6,35
3 0,77 0,94 2,49 4,14 6,09 7,52
4 0,8 1,03 3,24 5,75 9,07 11,96
5 0,79 0,98 2,7 4,52 6,79 8,62
6 0,94 1,3 5,32 9,14 13,75 17,17
7 0,72 0,84 1,93 3,03 4,44 5,53
8 0,8 1,01 2,98 5,08 7,6 9,59
9 0,77 0,95 2,52 4,16 6,09 7,53
10 0,8 0,99 2,91 4,88 7,22 9,08
11 0,85 1,1 3,75 6,94 12,01 20,57
12 0,79 0,97 2,73 4,64 7,03 9,13
13 0,81 1,03 3,05 5,08 7,5 9,47
14 0,79 0,97 2,62 4,27 6,17 7,57
15 0,82 1,05 3,14 5,28 8,06 11,75
16 0,78 0,95 2,55 4,2 6,16 7,62
17 0,77 0,93 2,39 3,86 5,55 6,76
19 0,75 0,91 2,26 3,59 5,15 6,24
20 0,77 0,94 2,48 4,06 5,9 7,22
21 0,75 0,9 2,29 3,73 5,44 6,7
22 0,76 0,93 2,49 4,11 5,98 7,34
23 0,82 1,05 3,18 5,43 8,39 11,24
24 0,79 0,98 2,81 4,79 7,18 9,07
25 0,8 1,03 3,26 5,82 9,37 12,79
26 0,83 1,07 3,52 6,38 10,35 13,99
27 0,78 0,96 2,69 4,69 7,32 9,76
28 0,75 0,9 2,22 3,59 5,27 6,54
29 0,77 0,93 2,55 4,39 6,69 8,51
30 0,87 1,13 3,6 5,89 8,7 11,22
31 0,95 1,3 4,79 8,07 12,83 17,26
32 0,83 1,03 3,02 5,01 7,37 9,32
33 0,79 0,99 2,92 5,05 7,67 9,87
34 0,8 1 3,11 5,39 8,07 10,32
35 0,79 0,98 2,78 4,68 6,95 8,73
36 0,81 1,01 3,11 5,47 8,67 12,21
37 0,81 1,01 2,98 5,12 7,8 10,2

Applicant's summary and conclusion

Conclusions:
The average of the d50 value of about 37 samples of the production of the applicant is 2.9µm with a standard deviation of 0,69µm
Executive summary:

The average of the d50 value of about 37 samples of the production of the applicant is 2.9µm with a standard deviation of 0,69µm