Fatty acids, C8-14 (even numbered) methyl-2-sulfoethyl esters, sodium salts

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:

2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Principles of method if other than guideline:

The test is conducted in accordance with the procedure described in EU Regulation (EC) 440/2008, Annex Part A test A.3 and OECD Test Guideline 109.

The relative density of solids or liquids is the ratio between the mass of a volume of substance to be examined, determined at 20°C, and the mass of the same volume of water, determined at 4°C. The relative density has no dimension.

The density, ρ, of a substance is the quotient of the mass, m, and its volume, v.

The density, ρ, is given, in SI units, in kg/m3.

For solids or liquids, pycnometers of various shapes and with known volumes may be employed. The density is calculated from the difference in weight between the full and empty pycnometer and its known volume. The tests are run at a constant temperature, preferably 20°C, and at least two measurements are generally performed.

GLP compliance:

yes (incl. QA statement)

Type of method:

pycnometer method

Key result

Type:

relative density

Density:

1.162 g/cm³

Temp.:

20 °C

Type:

density

Density:

1 162 kg/m³

Temp.:

20 °C

Conclusions:

Mean result from 2 runs:
Relative density = 1.162 @ 20°C
Density = 1162 kg.m-3 @ 20°C

Executive summary:

The density of SCMI was determined in accordance with the pycnometer procedure described in EU Regulation (EC) 440/2008, Annex Part A test A.3 and OECD Test Guideline 109.

Mean result from 2 runs:

Relative density = 1.162 @ 20°C

Density = 1162 kg.m-3 @ 20°C

Reference 2

Endpoint:

relative density

Type of information:

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

Adequacy of study:

supporting study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study without detailed documentation

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Deviations:

no

GLP compliance:

no

Type of method:

buoyancy method - hydrostatic balance

Key result

Type:

relative density

Density:

ca. 1.1 g/cm³

Temp.:

22 °C

Conclusions:

In a study performed to OECD 209, SLMI had a density of ca.1.1g/m3 at 22°C

Reference 3

Endpoint:

relative density

Type of information:

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

Adequacy of study:

supporting study

Study period:

2011

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

pycnometer method

Type:

relative density

Density:

1.116 g/cm³

Temp.:

20 °C

Remarks on result:

other: Average of two results

Conclusions:

In a study performed to EC method A1, the following relative density (D204) result was obtained: 1.116 g/cm3 (mean of 2 runs)

Description of key information

The density of SCMI was determined in accordance with the pycnometer procedure described in EU Regulation (EC) 440/2008, Annex Part A test A.3 and OECD Test Guideline 109.

Mean result from 2 runs:

Relative density = 1.162 @ 20°C

Density = 1162 kg.m-3 @ 20°C

Key value for chemical safety assessment

Relative density at 20C:

1.162