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Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Guideline compliant study with good documentation
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
GLP compliance:
no
Type of method:
pycnometer method
Type:
relative density
Density:
1.269
Temp.:
20 °C
Remarks on result:
other: The relative density is dimensionless.

 

Table 1: Determination of the relative density

Pycnometer No.

14

28

44

mpycnometer[g]

36.6292

35.3608

35.3850

mpycnometer + test item[g]

44.4184

41.6547

42.9908

mpycnometer + test item + immersion liquid[g]

57.5830

55.7903

56.2529

mtest item[g]

7.7892

6.2939

7.6058

m3[g]

13.1646

14.1356

13.2621

mpycnometer + immersion liquid [g]

54.4411

53.5629

53.5867

mpycnometer + water (20 °C) [g]

60.0672

59.3185

59.3363

m1 Immersion liquid [g]

17.8119

18.2021

18.2017

m2 water (20 °C) [g]

23.4380

23.9577

23.9513

d(immersion liquid)[g/cm³]

0.7587

0.7584

0.7586

Relative DensityD420

1.271

1.268

1.269

Average relative density D420

1.269

Executive summary:

The relative density of Sodium dicyclohexyl sulfosuccinate was determined by Frischmann (2012) in a Klimisch 1 non-GLP study according to EC A.3 and OECD 109 by using the pycnometer method. The test item has a relative density D420 of 1.269 which corresponds to 1.269 g/cm ³.

The results of this test are considered to be relevant and reliable for the assessment.

Description of key information

relative density: 1.269

Key value for chemical safety assessment

Relative density at 20C:
1.269

Additional information

The relative density of Sodium dicyclohexyl sulfosuccinate was determined by Frischmann (2012) in a Klimisch 1 non-GLP study according to EC A.3 and OECD 109 by using the pycnometer method. The test item has a relative density D420 of 1.269 which corresponds to 1.269 g/cm ³.

The results of this test are considered to be relevant and reliable for the assessment.

In the Cytec non-GLP Klimisch 2 study from Rivera (2011) the density of the test substance was measured according to OECD 109 using a pycnometer at room temperature. The study was considered to have a Klimisch 2 score since only limited experimental details were provided.  A 10 mL sample cell was used and each test substance specimen was measured 5 times. No significant difference in testing duplicate specimens was detected. A sample weight loss of less than 0.1 wt.% was observed for both specimens. The mean density from both measurements resulted in a density of 1.349 g/cm³. The result is considered as supporting information since the report from Frischmann (2012) provides more study details.

A relative density of 1.269 will be used for the further assessment.