3,7-dimethylocta-1,6-diene

Density

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

August 2010

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Study performed according to international guidelines but not under GLP and with some lack of details (no report number, criteria of validity not indicated).

Reason / purpose for cross-reference:

reference to other study

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Deviations:

not specified

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Deviations:

not specified

GLP compliance:

no

Type of method:

oscillating densitimeter

Type:

relative density

Density:

0.762

Temp.:

20 °C

Remarks on result:

other: relative density at 20 °C in reference with water at 4 °C

The obtained value is the mean result of three determinations at 20 ± 0.5 °C :

Assay No.	Density (kg/m3)	Relative density
1	761.6	0.7616
2	761.6	0.7616
3	761.6	0.7616
Mean ± standard deviation	761.6 ± 0.1	0.7616 ± 0.0001

Relative density = density (kg/m3) / 999.975 (kg/m3) (density of water at 4°C).

The average density at 20°C ± 0.5 °C of the test item is 762 ± 1 kg/m3.

Conclusions:

The relative density at 20°C of DIMETHYLOCTADIENE (2436‐90‐0) is 0.762 ± 0.001.

Executive summary:

The relative density of DIMETHYLOCTADIENE has been measured according to OECD Guideline 109 and to EU Method A.3.

Using an oscillating densimeter, the relative density of the test item at 20 °C in reference with water at 4 °C (D20/4) was determined as 0.762 ± 0.001.

The result has been considered as reliable with restrictions because the test was performed in complinace with edicted guidelines giving scientifically valid results but some details are lacking in the report (no GLP, no report number, criteria of validity of the results not given).

Reference 2

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

supporting study

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

other: Data from secondary literature source (handbook)

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to other study

Principles of method if other than guideline:

Method followed unknown, data from handbook

GLP compliance:

not specified

Type of method:

other: no data

Type:

relative density

Density:

0.757

Temp.:

20 °C

None

Conclusions:

The relative density of citronellene is 0.757 at 20 °C/4°C.

Executive summary:

The relative density (d₂₀⁴) of citronellene is 0.757.

Reference 3

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

1954

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

other: Documentation insufficient for assessment: Method followed unknown

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to other study

Principles of method if other than guideline:

Method followed unknown

GLP compliance:

not specified

Type of method:

other: no data

Type:

relative density

Density:

0.757

Temp.:

20 °C

None

Conclusions:

The relative density of 3,7-dimethylocta-1,6-diene is 0.7573 at 20°C/4°C.

Executive summary:

The relative density (d₂₀⁴) of 3,7-dimethylocta-1,6-diene is 0.7573.

Description of key information

Relative density of DIMETHYLOCTADIENE at 20 °C (D20/4) : 0.762 ± 0.001.

Key value for chemical safety assessment

Relative density at 20C:

0.762

Additional information

The relative density of DIMETHYLOCTADIENE at 20 °C in reference with water at 4 °C was determined in a study performed according to OECD guideline 109 and EU method A3 using an oscillating densimeter. The value was considered with a reliability of 2 (reliable with restrictions) because the result is scientifically acceptable but not obtained under GLP and some details were lacking in the report. However the relative density is valid for key value and supported by data from one handbook and one old study.