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EC number: 257-077-0 | CAS number: 51240-95-0
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- July 11, 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
- GLP compliance:
- no
- Remarks:
- Internal management system
- Type of method:
- oscillating densitimeter
- Type:
- relative density
- Density:
- 0.857
- Temp.:
- 20 °C
- Conclusions:
- The relative density of 1,1,3,3-Tetramethylbutyl peroxyneodecanoate , 70% in isododecane is 0.8573 (± 0.0001) at 20°C.
- Executive summary:
The relative density of 1,1,3,3-Tetramethylbutyl peroxyneodecanoate, 70% in isododecane was determined in quadruplet according to EC Regulation No 440/2008, Guideline A.3 and according to OECD Guideline 109 , 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 1,1,3,3-Tetramethylbutyl peroxyneodecanoate , 70% in isododecane is 0.8573 (± 0.0001) at 20°C.
Reference
Calibration and validity verification
The calibration was carried out at August 16, 2010.
The measured density of the calibration liquids at 20°C is mentioned in table 1. Also the deviation from the literature values is mentioned. The mean value for the calibration liquids agrees within ± 0.002 g/cm3(accuracy range) with the literature values.
Table 1: measured density of calibration liquids at 20°C
Calibration liquid |
Measurement |
Density [g/cm3] |
Mean density value [g/cm3] |
Deviation from literature value [g/cm3] |
Demineralized water |
1 |
0.9982 |
0.9982 |
0.0000 |
2 |
0.9982 |
|||
3 |
0.9982 |
|||
Ethanol |
1 |
0.7897 |
0.7896 |
0.0003 |
2 |
0.7896 |
|||
3 |
0.7896 |
|||
4 |
0.7896 |
The validity of the method was verified prior to the measurement with the test substance using demineralized water.
Measured density of water at 20°C:
measurement 1: 0.9981 g/cm3
measurement 2: 0.9981 g/cm3
measurement 3: 0.9981 g/cm3
These values agree within ± 0.0005 g/cm3with the literature value for demineralized water.
Density test substance
Measured density of the test substance at 20°C:
measurement 1: 0.8572 g/cm3
measurement 2: 0.8574 g/cm3
measurement 3: 0.8573 g/cm3
measurement 4: 0.8574 g/cm3
Mean value at 20°C is 0.8573 g/cm3. The standard deviation is ± 0.0001 g/cm3.
The relative density of the test substance is 0.8573 (± 0.0001).
Description of key information
The relative density of 1,1,3,3-Tetramethylbutyl peroxyneodecanoate , 70% in isododecane is 0.8573 (± 0.0001) at 20°C.
Key value for chemical safety assessment
- Relative density at 20C:
- 0.857
Additional information
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