Neodecanoic acid, iron salt

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:

The study was initiated on 13 April 2017 and completed on the date the final report was signed by the Study Director.

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Version / remarks:

Due to the viscous nature of the test item the relative density was determined by a gas comparison pycnometer method conforming to OECD Guideline 109.

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

other: Gas comparison pycnometer method conforming to OECD Guideline 109.

Specific details on test material used for the study:

Sponsor batch: E01133-065
Purity: 100 %
Arrival date: 6 March 2017
Re-test date: 31 July 2019
Storage conditions: Refrigerated (2 to 8°C) under nitrogen. The test substance was supplied in a translucent HDPE container and has been stored in this container. The test substance was stored in a fridge, in the dark when not in use.

Key result

Type:

relative density

Density:

1.079 g/cm³

Temp.:

20 °C

The density of the test item was found to be 1.0789 g/cm³ (1078.9 kg/m³); the mean of 1.0790, 1.0792, 1.0788, 1.0782 and 1.0792 g/cm³ with a  standard deviation of 0.0004 g/cm³. Therefore, the relative density (D_4^20) is 1.0789. For the AccuPyc 1330TC instrument used, the accuracy is to within 0.03% of the reading plus 0.03% of the nominal full-scale cell chamber volume (10 cm³).

Conclusions:

The density of the test item was found to be 1.0789 g/cm3 (1078.9 kg/m3).

Executive summary:

In a study, according to OECD 109, the density of neodecanoic acid, iron salt has been characterised. The density of the test item was found to be 1.0789 g/cm³ (1078.9 kg/m³); the mean of 1.0790, 1.0792, 1.0788, 1.0782 and 1.0792 g/cm³ with a  standard deviation of 0.0004 g/cm³. For the AccuPyc 1330TC instrument used, the accuracy is to within 0.03% of the reading plus 0.03% of the nominal full-scale cell chamber volume (10 cm³).

Therefore, the relative density (D_4^20) is 1.0789.

Reference 2

Endpoint:

density

Remarks:

density

Type of information:

read-across from supporting substance (structural analogue or surrogate)

Adequacy of study:

supporting study

Justification for type of information:

For details and justification of read-across please refer to the report attached in section 13 of IUCLID.

Reason / purpose for cross-reference:

read-across source

Key result

Type:

density

Density:

0.91 g/cm³

Temp.:

20 °C

Conclusions:

The density for neodecanoic acid has been determined to 0.911 g/cm³ at 20°C.

Executive summary:

In a study, according to ASTM D4052, the density of neodecanoic acid has been characterised. The density for neodecanoic acid has been determined to 0.911 g/cm³ at 20°C.

This information is used in a read-across approach in the assessment of the target substance. For details and justification of read-across please refer to the read-across report attached to IUCLID section 13.

Description of key information

In a study, according to OECD 109, the density of neodecanoic acid, iron salt has been characterised. The density of the test item was found to be 1.0789 g/cm³ (1078.9 kg/m³); the mean of 1.0790, 1.0792, 1.0788, 1.0782 and 1.0792 g/cm³ with a  standard deviation of 0.0004 g/cm³. Therefore, the relative density (D_4^20) is 1.0789.

As a supporting approach, read-across has been made to neodecanoic acid (EC No. 248 -093 -9; CAS No. 26896 -20 -8). The determined value is 0.911 g/cm³ at 20°C.

Key value for chemical safety assessment

Relative density at 20C:

1.079

Additional information

The density of the test item was found to be 1.0789 g/cm3 (1078.9 kg/m³); the mean of 1.0790, 1.0792, 1.0788, 1.0782 and 1.0792 g/cm³ with a standard deviation of 0.0004 g/cm³. For the AccuPyc 1330TC instrument used, the accuracy is to within 0.03% of the reading plus 0.03% of the nominal full-scale cell chamber volume (10 cm³).

Therefore, the relative density (D_4^20) is 1.0789