Registration Dossier
Registration Dossier
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EC number: 247-611-0 | CAS number: 26322-14-5
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- September 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Well conducted study, according to EU and OECD guidelines, with Internal management system and certificate of analysis included in the report.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Version / remarks:
- May 31, 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Version / remarks:
- Adopted July 27, 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 51913, Testing of carbon materials – Determination of density by gas pycnometer (volumetric) using helium as the measuring gas – Solid materials, May 2001
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 1183-3, Plastics – Methods for determining the density of non-cellular plastics – Part 3: Gas pycnometer method, 1999
- Deviations:
- no
- GLP compliance:
- no
- Remarks:
- Internal management system
- Type of method:
- pycnometer method
- Type:
- relative density
- Density:
- 1.02
- Temp.:
- 20 °C
- Remarks on result:
- other: standard deviation of 0.003
- Conclusions:
- The relative density of dihexadecyl peroxodicarbonate (batch no.: 1009530211) is 1.020 with a standard deviation of 0.003.
- Executive summary:
The relative density of dihexadecyl peroxodicarbonate was determined in triplicate according to DIN 51913 and in accordance with European Chemicals Agency (ECHA), Guidance on information requirements and chemical safety assessment, Chapter R.7a, Endpoint specific guidance, May 2008.
The relative density of dihexadecyl peroxodicarbonate flakes is1.020 with a standard deviation of 0.003.
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- September 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Well conducted study, according to EU and OECD guidelines, with Internal management system and certificate of analysis included in the report.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Version / remarks:
- May 31, 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Version / remarks:
- Adopted July 27, 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 51913, Testing of carbon materials – Determination of density by gas pycnometer (volumetric) using helium as the measuring gas – Solid materials, May 2001
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 1183-3, Plastics – Methods for determining the density of non-cellular plastics – Part 3: Gas pycnometer method, 1999
- Deviations:
- no
- GLP compliance:
- no
- Remarks:
- Internal management system
- Type of method:
- pycnometer method
- Type:
- relative density
- Density:
- 1.035
- Temp.:
- 20 °C
- Remarks on result:
- other: standard deviation of 0.003
- Conclusions:
- The relative density of dihexadecyl peroxodicarbonate powder (batch no.: 1011540230) is 1.035 with a standard deviation of 0.001.
- Executive summary:
The relative density of dihexadecyl peroxodicarbonate was determined in triplicate according to DIN 51913 and in accordance with European Chemicals Agency (ECHA), Guidance on information requirements and chemical safety assessment, Chapter R.7a, Endpoint specific guidance, May 2008.
The relative density of dihexadecyl peroxodicarbonate powder is 1.035 with a standard deviation of 0.001.
Referenceopen allclose all
Table 3: Control pycnometer
Control sample |
Standard volume (cm3) |
Measured volume (cm3) |
Deviation (cm3) |
Deviation (%) |
Temperature (ºC) |
Standard 135 |
6.3717 |
6.3710 |
-0.0007 |
-0.006 |
20.0 |
Remark: The measured volume of the Standard 135 should be within 0.02% of the total volume of the measuring cell (VTotal= 11.7 cm3).
Table 5: True density of dihexadecyl peroxodicarbonate
Sample |
Sample weight (g) |
Volume (cm3) |
True density (g/cm3) |
Temperature (ºC) |
1009530211-1 |
3.3577 |
3.2753 3.2864 |
1.0252 1.0217 |
20.0 20.0 |
1009530211-2 |
2.9797 |
2.9214 2.9254 |
1.0200 1.0186 |
20.0 20.0 |
1009530211-3 |
3.4748 |
3.4094 3.4157 |
1.0192 1.0173 |
20.0 20.0 |
Table 6: Relative density of dihexadecyl peroxodicarbonate:
Sample / Relative density |
Dihexadecyl peroxodicarbonate Batch no.:1009530211 |
Average |
1.0203 |
St. Dev. |
0.0028 |
RSD (%) |
0.27 |
Table 3: Control pycnometer
Control sample |
Standard volume (cm3) |
Measured volume (cm3) |
Deviation (cm3) |
Deviation (%) |
Temperature (ºC) |
Standard 135 |
6.3717 |
6.3710 |
-0.0007 |
-0.006 |
20.0 |
Remark: The measured volume of the Standard 135 should be within 0.02% of the total volume of the measuring cell (VTotal= 11.7 cm3).
Table 5: True density of dihexadecyl peroxodicarbonate
Sample |
Sample weight (g) |
Volume (cm3) |
True density (g/cm3) |
Temperature (ºC) |
1011540230-1 |
4.2536 |
4.1103 4.1069 |
1.0349 1.0357 |
20.0 20.0 |
1011540230-2 |
4.2741 |
4.1360 4.1316 |
1.0334 1.0345 |
20.0 20.0 |
1011540230-3 |
4.5100 |
4.3617 4.3582 |
1.0340 1.0348 |
20.0 20.0 |
Table 6: Relative density of dihexadecyl peroxodicarbonate:
Sample / Relative density |
Dihexadecyl peroxodicarbonate Batch no.:1011540230 |
Average |
1.0345 |
St. Dev. |
0.0008 |
RSD (%) |
0.08 |
Description of key information
The relative density of dihexadecyl peroxodicarbonate flakes is 1.020 and of dihexadecyl peroxodicarbonate powder is 1.035. The densities differ because of differences in physical appearance (flakes/powder) and purity.
Key value for chemical safety assessment
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.
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