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EC number: 204-839-5 | CAS number: 127-39-9
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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline compliant study
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 66165 part I (basics) and II (performance of the study), ISO 3310 and ASTM E11.
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- sieving
- Type of distribution:
- other: diameter
- Key result
- Percentile:
- D50
- Mean:
- > 10 000 µm
- Remarks on result:
- other: In the grain fraction > 5000 µm are particles of the dimension up to 90000 µm.(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)
- Executive summary:
In the non-GLP Klimisch 1 study from Bütfering (2012) the particle size distribution of Butandioic acid, sulfo-, 1,4-bis(2-methylpropyl)ester, sodium salt was determined using sieves from 125 to 5000 µm. In the grain fraction > 5000 µm are particles of the dimension up to 90000 µm.The mass median diameter (MMD) of the test item is calculated to be > 10000 µm.
This study is considered relevant for the risk assessment.
Reference
Table 1 Partile size distribution
Grain fraction |
Percent by weight |
Frequency density |
Cumulative (%) |
||
(µm) |
(g) |
(%) |
q3 (%/µm) |
Q3 (D) |
1-Q3 (R) |
< 125 |
11.33 |
12.3 |
0.098 |
12.3 |
87.7 |
125 – 500 |
7.13 |
7.7 |
0.021 |
20.0 |
80.0 |
500 – 1000 |
6.24 |
6.7 |
0.013 |
26.7 |
73.3 |
1000 – 1400 |
2.43 |
2.6 |
0.007 |
29.3 |
70.7 |
1400 - 2000 |
2.95 |
3.2 |
0.005 |
32.5 |
67.5 |
2000 - 3150 |
4.31 |
4.7 |
0.004 |
37.2 |
62.8 |
3150 - 4000 |
3.39 |
3.7 |
0.004 |
40.9 |
59.1 |
4000 - 5000 |
4.70 |
5.1 |
0.005 |
45.9 |
54.1 |
> 5000 |
50.00 |
54.1 |
0.005 |
100.0 |
0.0 |
X10: 102 µm
X50: > 10000 µm
X90: > 70000 µm
In the grain fraction > 5000 µm are particles of the dimension up to 90000 µm.
Description of key information
Additional information
In the non-GLP Klimisch 1 study from Bütfering (2012) the particle size distribution of Butandioic acid, sulfo-, 1,4-bis(2-methylpropyl)ester, sodium salt was determined using sieves from 125 to 5000 µm.In the grain fraction > 5000 µm are particles of the dimension up to 90000 µm. The mass median diameter (MMD) of the test item is calculated to be > 10000 µm.
This study is considered relevant for the risk assessment.
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