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EC number: 239-268-0 | CAS number: 15214-89-8
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2007
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Well documented report of guideline study conducted according to GLP.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 007
- Report date:
- 2007
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- GLP compliance:
- yes (incl. QA statement)
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- 2-acrylamido-2-methylpropanesulphonic acid
- EC Number:
- 239-268-0
- EC Name:
- 2-acrylamido-2-methylpropanesulphonic acid
- Cas Number:
- 15214-89-8
- Molecular formula:
- C7H13NO4S
- IUPAC Name:
- (1Z)-N-(2-methyl-1-sulfopropan-2-yl)prop-2-enimidic acid
- Details on test material:
- - Name of test material (as cited in study report): ATBS
- Physical state: white powder
- Analytical purity: 99.4%
- Lot/batch No.: 061202 received 18 january 2007
- Expiration date of the lot/batch: 30 june 2007
- Storage condition of test material: Room temperature in the dark
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D50
- Mean:
- > 30 - < 400 µm
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- Percentile:
- other: 3.2 %
- Mean:
- > 400 µm
- Percentile:
- other: 37.7%
- Mean:
- > 125 - < 400 µm
- Percentile:
- other: 35.5%
- Mean:
- > 75 - < 125 µm
- Percentile:
- other: 22.2%
- Mean:
- > 30 - < 75 µm
- Percentile:
- other: 1.3%
- Mean:
- > 10 - < 30 µm
Any other information on results incl. tables
Result of the miscroscopic analysis
Size µm Mean%
105 - 130 14.6%
60.0 - 105 45.1
30.0 - 60.0 33.6
10.0 -30.0 6.5
0.5 -10.0 0.2
The observed material was a mixture of long and thin particles, with some more irregular crystalline particles.
Applicant's summary and conclusion
- Conclusions:
- The results indicated that 0.2% w/w of ATBS was smaller than 10 µm.
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