Undecan-4-olide

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:

12/2007 to 03/2008

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study without detailed documentation

Remarks:

The study was conducted according to an internationally recognised method. The substance is adequately defined (with certificate of analysis). However, some experimental data are missing. Therefore validation applies with restrictions.

Qualifier:

according to guideline

Guideline:

other: ISO 758

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

GLP compliance:

no

Type of method:

pycnometer method

Dynamic viscosity of test material:

Pycnometer method applies for liquids with viscosity up to 500 Pa.s. Based on IUCLID point 4.22 (<10 mPa.s at 20°C), the method is suitable.

Type:

density

Density:

0.942 g/cm³

Temp.:

19.9 °C

Remarks on result:

other: accuracy: +/- 0.0005

Type:

relative density

Density:

0.944

Temp.:

20 °C

Remarks on result:

other: D20/20

Type:

relative density

Density:

0.942

Temp.:

20 °C

Remarks on result:

other: D20/4

No data on individual measurements (at least two repetitions required).

Conclusions:

The substance is less dense than water.

Executive summary:

According to ISO 758 guideline (listed in OECD/EC), a relative density D20/4 of 0.9416 was measured for the substance.

Reference 2

Endpoint:

density, other

Type of information:

not specified

Adequacy of study:

supporting study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Remarks:

Despite data comes from a handbook, please note that the source is cited among "reference books containing peer reviewed physico-chemical data" in the ECHA guidance document on information requirements (R7a). Therefore it will be considered as reliable, with the restriction that no purity is stated.

Reason / purpose for cross-reference:

reference to other study

Principles of method if other than guideline:

No data

Type:

density

Density:

0.949 g/cm³

Temp.:

20 °C

Executive summary:

A chapter of the peer-reviewed CRC Handbook of Chemistry and Physics (2009) is dedicated to physical constants of organic compounds. A density of 0.9494 g/cm3 at 20°C is provided.

Reference 3

Endpoint:

density, other

Type of information:

not specified

Adequacy of study:

supporting study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Remarks:

Data comes from a recognised authority review. Therefore it will be considered as reliable, with the restriction that no purity is stated.

Reason / purpose for cross-reference:

reference to other study

Principles of method if other than guideline:

No data

Density:

0.942 - 0.945

Temperature not specified, but assumed to be ambient

Executive summary:

The US EPA RED on the pesticide Furanone provides, as secondary source, some physico-chemical properties on the two compounds of Furanone. A (relative) density in the range 0.942 - 0.945 (ambient T assumed) is cited.

Description of key information

The substance is less dense than water.

Key value for chemical safety assessment

Relative density at 20C:

0.942

Additional information

A reliable study, conducted by the registrant according to the OECD guideline, is available. Despite restrictions due to missing details, it is considered as a key study, and the result is retained as key data.

Literature data was not taken into account in the present dossier, nevertheless the range was consistent with the above value.