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EC number: 232-188-7 | CAS number: 7789-75-5
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:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 13320-1
- GLP compliance:
- no
- Type of method:
- other: not specified
- Type of distribution:
- volumetric distribution
- Percentile:
- D10
- Mean:
- 93.754 µm
- St. dev.:
- 1
- Remarks on result:
- other: no std dev info available
- Percentile:
- D50
- Mean:
- 583.221 µm
- St. dev.:
- 1
- Remarks on result:
- other: no std dev info available
- Percentile:
- D90
- Mean:
- 1 359.628 µm
- St. dev.:
- 1
- Remarks on result:
- other: no std dev info available
- Conclusions:
- The particle size distribution of the four preparations was measured to be D10 = 93.574 µm, D50 = 583.221 µm and D90 = 1359.628 µm.
- Executive summary:
The particle size distribution of four calcium fluoride preparations were measured.
The mean distribution was D10 = 93.574 µm, D50 = 583.221 µm and D90 = 1359.628 µm.
- 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:
- comparable to guideline study
- Remarks:
- Modern study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- GLP compliance:
- no
- Type of method:
- other: not specified
- Type of distribution:
- volumetric distribution
- Percentile:
- D10
- Mean:
- 1.83 µm
- St. dev.:
- 1
- Remarks on result:
- other: std dev info not available
- Percentile:
- D50
- Mean:
- 6.16 µm
- St. dev.:
- 1
- Remarks on result:
- other: no std dev info available
- Percentile:
- D90
- Mean:
- 16.67 µm
- St. dev.:
- 1
- Remarks on result:
- other: no std dev info available
- Conclusions:
- The particle size distribution was measured to be D10 = 1.83 µm, D50 = 6.16 µm and D90 = 16.67 µm.
- Executive summary:
The particle size distribution was measured for a sample of calcium fluoride. The results were as follows: D10 = 1.83 µm, D50 = 6.16 µm and D90 = 16.67 µm.
- 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:
- guideline study
- Remarks:
- Modern study performed to current guidelines.
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 565:1990
- GLP compliance:
- no
- Type of method:
- sieving
- Type of distribution:
- volumetric distribution
- Percentile:
- D10
- Mean:
- 4.43 µm
- St. dev.:
- 1
- Remarks on result:
- other: no std dev info available
- Percentile:
- D50
- Mean:
- 15.096 µm
- St. dev.:
- 1
- Remarks on result:
- other: no std dev info available
- Percentile:
- D90
- Mean:
- 45.848 µm
- St. dev.:
- 1
- Remarks on result:
- other: no std dev info available
- Conclusions:
- The median diameter was determined to be 15.096 µm.
- Executive summary:
The particle size distribution was determined for a sample of calcium fluoride. The D10, D50 and D90 were determined to be 4.43, 15.096, 45.848 µm respectively.
Referenceopen allclose all
No further information.
No further information.
Size (µm) |
Volume in % |
Size (µm) |
Volume in % |
0.500 |
- |
45.000 |
12.52 |
1.000 |
0.38 |
63.000 |
6.25 |
2.000 |
1.25 |
75.000 |
1.75 |
5.000 |
10.98 |
105.000 |
1.54 |
10.000 |
21.41 |
150.000 |
0.52 |
20.000 |
27.36 |
250.000 |
0.39 |
30.000 |
15.69 |
>250.000 |
0 |
Description of key information
Data are provided for a number of sources of calcium fluoride. The median diameter (D50) was found to be in the range of 6.16 - 583.22 µm.
The 3 key studies for this endpoint are the data provided by CILAS, BASF and Derivados Del Fluor. The other 3 results (provided by Alufluor, CILAS and Prayon) are used as supporting studies.
Additional information
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