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EC number: 249-720-9 | CAS number: 29598-76-3
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:
- 04 August 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
- Justification for type of information:
- Study performed to recognised standard in compliance with GLP.
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: CIPAC method MT 59 “Sieve Analysis”, CIPAC Handbook Volume F, Physico-Chemical Methods for Technical and Formulated Pesticides, 1995.
- Version / remarks:
- CIPAC method MT 59 “Sieve Analysis”, CIPAC Handbook Volume F, Physico-Chemical Methods for Technical and Formulated Pesticides, 1995.
- Deviations:
- no
- Remarks:
- See below
- Principles of method if other than guideline:
- CIPAC method MT 59 “Sieve Analysis”, CIPAC Handbook Volume F, Physico-Chemical Methods for Technical and Formulated Pesticides, 1995.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- sieving
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Mass median aerodynamic diameter:
- >= 2 000 µm
- Remarks on result:
- other:
- Remarks:
- Not inhalable.
- No.:
- #1
- Size:
- < 100 µm
- Distribution:
- 0.3 %
- Remarks on result:
- other:
- Remarks:
- Not inhalable.
- No.:
- #2
- Size:
- > 100 - <= 180 µm
- Distribution:
- 0.3 %
- Remarks on result:
- other:
- Remarks:
- Not inhalable.
- No.:
- #3
- Size:
- > 180 - <= 250 µm
- Distribution:
- 0.2 %
- Remarks on result:
- other:
- Remarks:
- Not inhalable.
- No.:
- #4
- Size:
- >= 250 - <= 500 µm
- Distribution:
- 0.3 %
- Remarks on result:
- other:
- Remarks:
- Not inhalable.
- No.:
- #5
- Size:
- >= 500 - <= 1 000 µm
- Distribution:
- 0.2 %
- Remarks on result:
- other:
- Remarks:
- Not inhalable.
- No.:
- #6
- Size:
- >= 1 000 - <= 2 000 µm
- Distribution:
- 0.5 %
- Remarks on result:
- other:
- Remarks:
- Not inhalable.
- No.:
- #7
- Size:
- > 2 000 µm
- Distribution:
- 98.3 %
- Remarks on result:
- other:
- Remarks:
- Not inhalable.
- Conclusions:
- In the receiver pan (i.e. the fraction < 100 μm), 0.3% test item was collected.
- Executive summary:
The purpose of the study was to obtain a quantitative determination of the particle size distribution of the test item.
The method is based on the determination of the fractions test item of different particle size, obtained by leading a sample through a sequence of sieves with different mesh sizes.
The interval of the mesh size in which at least 80% of the test item is collected will be determined.
Guidelines:
CIPAC method MT 59 “Sieve Analysis”, CIPAC Handbook Volume F, Physico-Chemical Methods for
Technical and Formulated Pesticides, 1995.
The particle size distribution of 2,2-Bis[[3-(dodecylthio)-1-oxopropoxy]methyl]propane-1,3-diyl bis[3-(dodecylthio)propionate] was determined by sieving. The results are given in the table. In the receiver pan (i.e. the fraction < 100 μm), 0.3% test item was collected.
Fraction
Amount [%]
<100 μm
0.3
100 – 180 μm
0.3
180 – 250 μm
0.2
250 – 500 μm
0.3
500 – 1000 μm
0.2
1000 – 2000 μm
0.5
>2000 μm
98.3
Reference
The particle size distribution of 2,2-Bis[[3-(dodecylthio)-1-oxopropoxy]methyl]propane-1,3-diyl bis[3-(dodecylthio)propionate] was determined by sieving. The results are given in the table. In the receiver pan (i.e. the fraction < 100 μm), 0.3% test item was collected.
Fraction |
Amount [%] |
<100 μm |
0.3 |
100 – 180 μm |
0.3 |
180 – 250 μm |
0.2 |
250 – 500 μm |
0.3 |
500 – 1000 μm |
0.2 |
1000 – 2000 μm |
0.5 |
>2000 μm |
98.3 |
Description of key information
In the receiver pan (i.e. the fraction < 100 μm), 0.3% test item was collected.
Additional information
The purpose of the study was to obtain a quantitative determination of the particle size distribution of the test item.
The method is based on the determination of the fractions test item of different particle size, obtained by leading a sample through a sequence of sieves with different mesh sizes.
The interval of the mesh size in which at least 80% of the test item is collected will be determined.
The particle size distribution of 2,2-Bis[[3-(dodecylthio)-1-oxopropoxy]methyl]propane-1,3-diyl bis[3-(dodecylthio)propionate] was determined by sieving. The results are given in the table. In the receiver pan (i.e. the fraction < 100 μm), 0.3% test item was collected.
Fraction |
Amount [%] |
<100 μm |
0.3 |
100 – 180 μm |
0.3 |
180 – 250 μm |
0.2 |
250 – 500 μm |
0.3 |
500 – 1000 μm |
0.2 |
1000 – 2000 μm |
0.5 |
>2000 μm |
98.3 |
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