Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 201-074-9 | CAS number: 77-99-6
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:
- 2010
- Reliability:
- 1 (reliable without restriction)
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to other study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- GLP compliance:
- no
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Type of method:
- microscopic examination
- Type of distribution:
- volumetric distribution
- Percentile:
- D50
- Mean:
- 72.91 µm
- St. dev.:
- 42.7
- No.:
- #1
- Size:
- >= 5 - <= 100 µm
- Distribution:
- 70.82 %
- No.:
- #2
- Size:
- > 100 µm
- Distribution:
- 29.18 %
- Conclusions:
- The mean particle diameter of TMP is 75.66 micrometer.
- Executive summary:
The mean particle diameter of TMP (TMP < 100 micrometer sieve fraction) is 75.66 micrometer as determined experimentally according to OECD GUIDELINE FOR TESTING OF CHEMICALS, method B (Karbach, 2010). Regarding the TMP fraction < 100 micrometer, 70.82 % possess a mean diameter of 5 -100 micrometer, no particles, that means 0 % were detected possessing a mean diameter from < 0.4 - 5 micrometer.
29.18 % possess a mean diameter of > 100 micrometer.
Reference
Result: Sieve Fraction
2 -Ethyl-2 -(hydroxylmethyl)-1,3 -propanediol
weighed sample: 5.6678 g
weight fraction < 100 micrometer: 0.03758 g
mass fraction < 100 micrometer: 0.66 %
Statistical data:
Counts |
1096 |
|
|
Mean Diameter [micrometer] |
Aspect Ratio |
Minimum |
5.48 |
1.04 |
Maximum |
351.70 |
16.73 |
Arithmetic mean |
75.66 |
1.80 |
Median |
72.91 |
1.56 |
Standard deviation |
42.74 |
1.08 |
Particles with diameter greater than 100 micrometer are due to their aspect ratios up to 1.22.
Result: Mass Fraction (calculated):
2 -Ethyl-2 -(hydroxylmethyl)-1,3 -propanediol
Sieve fraction < 100 micrometer
Statistical data:
Particle Size |
Spherical Volume |
Cubical Volume |
< 4 micrometer |
0 % |
0 % |
4 – 10 micrometer |
0 % |
0 % |
10 – 100 micrometer |
21.87 % |
28.44 % |
> 100 micrometer |
78.13 % |
71.55 % |
Median (diameter) |
125 micrometer |
116 micrometer |
Description of key information
The mean particle diameter of TMP (TMP < 100 micrometer sieve fraction) is
75.66 micrometer as determined experimentally according to OECD GUIDELINE FOR TESTING OF CHEMICALS, method B (Karbach, 2010). Regarding the TMP fraction < 100 micrometer, 70.82 % possess a mean diameter of 5 -100 micrometer and 0 particles, that means 0 % were detected possessing a mean diameter from < 0.4 - 5 micrometer. 29.18 % possess a mean diameter of > 100 micrometer.
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
