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EC number: 201-782-8 | CAS number: 87-90-1
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data

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:
- supporting study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Principles of method if other than guideline:
- Particle size analysis was performed as part of a 36 month storage stability study. The determination was carried out initially, and after storage at 25°C for period of 24 and 36 months using a procedure based on Method MT58.2 of the CIPAC Handbook for the Analysis of Technical and Formulated Pesticides.
- GLP compliance:
- yes
- Percentile:
- D50
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- No.:
- #1
- Size:
- ca. 250 µm
- Distribution:
- 5.4 %
- No.:
- #2
- Size:
- ca. 125 µm
- Distribution:
- 4.6 %
- Conclusions:
- There was no significant change in the particle size distribution of the test material during storage at 25 ±2°C for 36 months.
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Principles of method if other than guideline:
- The particle size distribution of trichloroisocyanuric acid products was determined to define the levels of respirable dust present. The data was developed through a combination of gravimetric analysis and laser diffraction particle size analysis for both granular and tableted products.
- GLP compliance:
- no
- Type of method:
- other: combination of gravimetric analysis and laser diffraction particle size analysis
- Percentile:
- D50
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- No.:
- #1
- Size:
- 10.78 µm
- Distribution:
- ca. 0.02 %
- No.:
- #2
- Size:
- 52.63 µm
- Distribution:
- ca. 0.2 %
- Conclusions:
- Without vibration – levels of respirable dust for all materials analysed was less than 0.06%, with most samples being less than 0.02% for the 10.78 micron range, and less than 0.2% (typical values of less than 0.05%) for the 52.63 micron range. With vibration – vibration of the granular materials did not appear to make any difference
Referenceopen allclose all
Table 2: Particle size
|
Percentage <250 μm |
Percentage <125 μm |
Initial: |
5.40% |
4.60% |
24 months |
3.51% |
3.19% |
36 months |
4.46% |
3.58% |
Table 1: Findings of the study on trichloroisocyanuric acid products
Sample no |
Vibration test |
Starting material (g) |
Recover,100 mesh |
Thru 100 mesh (%) |
Transfer losses (%) |
Cum < 10.78 micron |
Cum < 52.63.micron |
|||
> (g) |
< (g) |
In < 100 mesh cut (%) |
In product (%) |
In < 100 mesh cut (%) |
In product (%) |
|||||
3” tablets |
|
|
|
|
|
|
|
|
|
|
3-3A |
No |
18026 |
18013 |
10.41 |
0.06 |
0.014 |
9.70 |
0.0056 |
46.27 |
0.0267 |
4-3B |
No |
17806 |
17791 |
15.18 |
0.09 |
0.002 |
12.23 |
0.0104 |
50.89 |
0.0434 |
5-3C |
No |
17928 |
17912 |
14.44 |
0.08 |
0.009 |
12.80 |
0.0103 |
52.95 |
0.0426 |
3” tablets |
|
|
|
|
|
|
|
|
|
|
2-2A |
Yes |
18167 |
18079 |
85.69 |
0.47 |
0.013 |
11.35 |
0.0535 |
50.33 |
0.2374 |
6-2B |
Yes |
18165 |
18068 |
126.26 |
0.69 |
0.004 |
12.74 |
0.0884 |
54.09 |
0.3753 |
8-2C |
Yes |
18045 |
18042 |
2.15 |
0.01 |
0.005 |
12.00 |
0.0014 |
52.58 |
0.0063 |
1” tablets |
|
|
|
|
|
|
|
|
|
|
1-1A |
No |
6974 |
6964 |
8.66 |
0.12 |
0.019 |
11.51 |
0.0143 |
47.86 |
0.0594 |
7-1B |
No |
6879 |
6862 |
13.8 |
0.20 |
0.047 |
13.93 |
0.0279 |
53.58 |
0.1075 |
1” tablets |
|
|
|
|
|
|
|
|
|
|
7A |
Yes |
18317 |
18150 |
161.97 |
0.88 |
0.029 |
11.88 |
0.1051 |
48.24 |
0.4266 |
7B |
Yes |
16621 |
16441 |
174.11 |
1.05 |
0.035 |
13.02 |
0.1364 |
51.09 |
0.5352 |
7C |
Yes |
16586 |
16444 |
132.8 |
0.80 |
0.055 |
11.84 |
0.0948 |
49.14 |
0.3935 |
ACL 90 XG |
|
|
|
|
|
|
|
|
|
|
10A |
No |
5475 |
5434 |
18.25 |
0.33 |
0.416 |
9.86 |
0.0329 |
54.37 |
0.1812 |
ACL 90 XG |
|
|
|
|
|
|
|
|
|
|
9A |
Yes |
17978 |
17934 |
3.54 |
0.02 |
0.225 |
4.05 |
0.0008 |
9.95 |
0.0020 |
9B |
Yes |
18005 |
17962 |
7.46 |
0.04 |
0.197 |
6.76 |
0.0028 |
29.48 |
0.0122 |
9C |
Yes |
18001 |
17896 |
12.11 |
0.07 |
0.516 |
15.25 |
0.0103 |
59.55 |
0.0401 |
ACL 90 XG |
|
|
|
|
|
|
Cum < 10.39 micron |
Cum < 53.51.micron |
||
N/A |
|
|
|
|
|
|
8.86 |
42.03 |
Description of key information
In a PSD study levels of respirable dust for samples analysed was less than 0.06%, with most samples being less than 0.02% for the 10.78µm range and less than 0.2% (typical values of less than 0.05%) for the 52.63µm. As part of the storage stability study the initial measurement of particle size was determined to be 5.4% particles < 250 µm and 4.6 % particles < 125 µm.
Additional information
The particle size distribution of trichloroisocyanuric acid products was determined to define the levels of respirable dust present (Schwartz & Johnson 1995).
As part of a 36 month storage stability study with ACL 90 XG (trichloroisocyanuric acid) particle size was determined initially, and after storage at 25°C for period of 24 and 36 months (O'Connor & Mullee 2003).
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