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Diss Factsheets

Physical & Chemical properties

Density

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Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
28 SEP 2009
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)
GLP compliance:
yes (incl. QA statement)
Type of method:
pycnometer method
Remarks:
using a Gay-Lussac pycnometer
Type:
density
Density:
0.9 g/cm³
Temp.:
20 °C
Type:
relative density
Density:
0.9 other: unitless
Temp.:
20 °C

Results of measured densities:

No of test

Weight of pycnometer [g]

Weight of pycnometer with water, m1[g]

Weight of pycnometer with tested material, m [g]

Absolute density, [g/mL]

ρt

Relative density

ρt4

1

20.4141

45.5087

43.1140

0.9301

0.903 / 0.999972

2

20.4141

45.5083

43.1139

0.9031

 

Average

0.903

0.903

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
29 SEP 2009
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)
GLP compliance:
yes (incl. QA statement)
Type of method:
pycnometer method
Remarks:
using the Gay-Lussac pycnometer
Type:
density
Density:
0.87 g/cm³
Temp.:
20 °C
Type:
relative density
Density:
0.87 other: unitless
Temp.:
20 °C

Results of measured densities:

No of test

Weight of pycnometer [g]

Weight of pycnometer with water, m1[g]

Weight of pycnometer with tested material, m [g]

Absolute density, [g/mL]

ρt

Relative density

ρt4

1

20.4141

45.5085

42.3757

0.8737

0.874 / 0.999972

2

20.4141

45.5090

42.3756

0.8737

 

Average

0.874

0.874

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
27 APR 2009
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Qualifier:
according to guideline
Guideline:
other: DIN 41757
GLP compliance:
no
Type of method:
oscillating densitimeter
Type:
density
Density:
0.9 g/cm³
Temp.:
20 °C
Type:
relative density
Density:
0.9 other: unitless
Temp.:
20 °C

Description of key information

0.87 - 0.90 g/cm³ at 20 °C (OECD 109, DIN 41757)

Key value for chemical safety assessment

Relative density at 20C:
0.89

Additional information

The data refer to measurements of substances of various single degrees of ethoxylation (EO = 2 and EO = 1). For a general ethoxylation degree of < 2.5 EO, a weight of evidence approach is applied.