Registration Dossier
Registration Dossier
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EC number: 231-137-6 | CAS number: 7440-27-9
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2016-10-18
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions) - Method B: Fibre Length and Diameter Distributions
- Deviations:
- not specified
- GLP compliance:
- no
- Type of method:
- sieving
- Type of particle tested:
- primary particle
- Type of distribution:
- counted distribution
- No.:
- #1
- Size:
- < 1 µm
- Distribution:
- 1.26 %
- No.:
- #2
- Size:
- >= 1 - <= 5 µm
- Distribution:
- 0.92 %
- No.:
- #3
- Size:
- >= 5 - <= 10 µm
- Distribution:
- 1.42 %
- No.:
- #4
- Size:
- >= 10 - <= 15 µm
- Distribution:
- 1.25 %
- No.:
- #5
- Size:
- >= 15 - <= 32 µm
- Distribution:
- 3.58 %
- No.:
- #6
- Size:
- >= 32 - <= 63 µm
- Distribution:
- 1.35 %
- No.:
- #7
- Size:
- >= 63 - <= 100 µm
- Distribution:
- 1.65 %
- No.:
- #8
- Size:
- >= 100 - <= 160 µm
- Distribution:
- 2.1 %
- No.:
- #9
- Size:
- >= 160 - <= 250 µm
- Distribution:
- 3.34 %
- No.:
- #10
- Size:
- >= 250 - <= 400 µm
- Distribution:
- 19.07 %
- No.:
- #10
- Size:
- >= 400 - <= 800 µm
- Distribution:
- 41.63 %
- No.:
- #10
- Size:
- > 800 µm
- Distribution:
- 22.43 %
- Executive summary:
The particle size distribution of VD 872 powder was estimated as follows:
Particle size in µm
>800
400 -800
250 -400
160 -250
100 -160
63 -100
32 -63
15 -32
10 -15
5 -10
1 -5
<1
VD 872
22.43
41.63
19.07
3.34
2.1
1.65
1.35
3.58
1.25
1.42
0.92
1.26
Reference
Composition of the tested sample:
Metal |
Nd |
Dy |
Pr |
Tb |
Sum of Rare Earth |
Ga |
Cu |
Co |
Fe |
Al |
B |
H |
|
|
|
|
|
|
|
|
|
|
|
|
|
VD 872 |
21,30 |
3,06 |
5,38 |
1,86 |
31,4 |
0,18 |
0,17 |
3,04 |
Rest |
0,1 |
0,9 |
0,086 |
|
|
|
|
|
|
|
|
|
|
|
|
|
Description of key information
The particle size distribution of VD 872 was estimated as:
Particle size in µm |
>800 |
400 -800 |
250 -400 |
160 -250 |
100 -160 |
63 -100 |
32 -63 |
15 -32 |
10 -15 |
5 -10 |
1 -5 |
<1 |
VD 872 |
22.43 |
41.63 |
19.07 |
3.34 |
2.1 |
1.65 |
1.35 |
3.58 |
1.25 |
1.42 |
0.92 |
1.26 |
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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