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Physical & Chemical properties

Density

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Reference
Endpoint:
density
Remarks:
density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
September 2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Well conducted study, according to EU guideline, under the Internal Management system. Certificate of analys is present in the report.
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Version / remarks:
Adopted July 27, 1995
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Version / remarks:
May 31, 2008
GLP compliance:
no
Remarks:
Internal Management system
Type of method:
oscillating densitimeter
Type:
density
Density:
0.91 g/cm³
Temp.:
20 °C
Remarks on result:
other: The standard deviation is ± 0.0002 g/cm3.

Calibration

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 both liquids agrees within ± 0.001 g/cm3(accuracy range) with the literature values.

Table : 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

0.9983

0.9983

0.0001

2

0.9983

3

0.9983

Ethanol

1

0.7900

0.7899

0.0006

2

0.7899

3

0.7899

 

 

 Density test substance

Measured density of the test substance at 20°C:

-        measurement 1: 0.9095 g/cm3

-        measurement 2: 0.9098 g/cm3

-        measurement 3: 0.9098 g/cm3

 

Mean value at 20°C is 0.910 g/cm3. The standard deviation is ± 0.0002 g/cm3.

Conclusions:
The density of di-tert-butyl 3,3,5-trimethylcyclohexylidene diperoxide at 20°C is 0.910 g/cm3.
Executive summary:

The density of di-tert-butyl 3,3,5-trimethylcyclohexylidene diperoxide was determined 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 density of di-tert-butyl 3,3,5-trimethylcyclohexylidene diperoxide at 20°C is 0.910 g/cm3. (± 0.0002 g/cm3).

Description of key information

The density of di-tert-butyl 3,3,5-trimethylcyclohexylidene diperoxide at 20°C is 0.910 g/cm3.

Key value for chemical safety assessment

Relative density at 20C:
0.91

Additional information