Registration Dossier
Registration Dossier
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EC number: 203-326-3 | CAS number: 105-74-8
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 2009
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Well conducted study, under Internal Management System, according to OECD Guideline 109. Certificate of analysis included in the report.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Version / remarks:
- section 9
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 51913Determination of density by gas pycnometer (volumetric) using Helium gas as the measuring gas – Solid materials, May 2001
- Deviations:
- yes
- Remarks:
- Temperature 23°C instead of 20°C.
- Qualifier:
- according to guideline
- Guideline:
- other: ISO1183-3, Plastics. Methods for determining the density of non-cellular plastics – Part 3: Gas Pyknometer method, 1999
- Principles of method if other than guideline:
- In the procedure a measuring temperature of 20°C is prescribed. In reality the measurement
is carried out at 23°C. However, based on the known thermal expansion factor of similar
chemicals, it can be stated that this deviation in measuring temperature has no significant
impact on the resulting relative density. - GLP compliance:
- no
- Type of method:
- pycnometer method
- Type:
- relative density
- Density:
- 1.04 g/cm³
- Temp.:
- 23 °C
- Remarks on result:
- other: RSD 0.16 %
- Conclusions:
- The relative density of dilauroyl peroxide is 1.04.
- Executive summary:
The study was conducted to determine the density of the substance by the pycnometer method accocding to DIN 51913. The relative density of di-lauroyl peroxide is 1.04.
Reference
True density measurement results
Sample |
Sample weight |
Volume |
True density |
|
[g] |
[cm3] |
[g/cm3] |
1 |
2.9359 |
2.8282 |
1.0381 |
2 |
3.1219 |
3.0145 |
1.0356 |
3 |
2.9000 |
2.8022 |
1.0349 |
Description of key information
The relative density of di-lauroyl peroxide is 1.04.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.04
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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