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Density

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Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 2016-06-10 to 2016-10-06
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
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
oscillating densitimeter
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
Test item: MCPP-P 2EHE
Batch No.: CHP0001
Purity: 96.1%
Expiry date: 2017-05-04
Dynamic viscosity of test material:
24.83 mPas at 20 °C
Key result
Type:
relative density
Density:
1.044 other: dimensionless
Temp.:
20 °C
Type:
relative density
Density:
1.028 other: dimensionless
Temp.:
40 °C

Table 1: Relative density

Test time (storage conditions)

Test item No.

Density 20 °C [g/mL]

Density 40 °C [g/mL]

Start

 

1

 

1.0440

1.0440

1.0440

1.0278

1.0278

1.0278

 

Conclusions:
The relative density of the test item was 1.044 at 20 °C and 1.028 at 40 °C.
Executive summary:

A study was conducted according to OECD TG 109 and Regulation (EC) No 440/2008 method A.3 to determine the relative density of the test item. Therefore the density was measured at a temperature of 20 °C and 40 °C using the oscillating densitometer. An initial calibration with purified-water was carried out. Subsequently three independent measurements of the test item were performed. The mean relative density of the test item at 20 °C with respect to water at 4 °C was determined to be 1.044 and at 40 °C to be 1.028. No observations were made which cause doubt on the validity of the outcome of the study.

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
supporting study
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:
1981
Deviations:
no
GLP compliance:
yes
Type of method:
pycnometer method
Specific details on test material used for the study:
Purity: 97.3 %
Key result
Type:
density
Density:
1.049 g/cm³
Temp.:
20 °C
Key result
Type:
relative density
Density:
1.049 other: dimensionless
Temp.:
20 °C

The mean relative density of duplicate determinations (1049.0 and 1048.8 kg.m-3) of the test substance was determined to be 1048.9 kg.m-3 (1.0489 g.cm-3) at 20 °C.

Table 1. Density determination of MCPP-P 2-EHE at 20 °C

Measurement

Weight (g)

1

2

Wt. Pycnometer + test item

Wt. empty Pycnometer

Wt. test item

22.6380

12.2357

10.4023

22.6366

12.2358

10.4006

Calculated density

1.0490 g.m-3

1.0488 g.cm-3

Pycnometer used – No. 435, Previously calibrated; Volume = 9.9167 cm3

 

Conclusions:
The relative density of the test substance was determined to be 1.0489 at 20 °C.
Executive summary:

A study was conducted according to OECD TG 109 (1981) to determine the relative density of the test item using the pycnometer method. The density was determined in two independent determinations. Using the pycnometer method the density was determined to be 1.0489 ± 0.0020 g/cm3at 20 °C and the relative density 1.0489 with respect to water at 4 °C respectively. The standard deviation reflects the distinguished correlation of the individual determinations. No observations were made which cause doubt on the validity of the outcome of the study.

Description of key information

The relative density of the test substance was determined to be 1.044 at 20 °C.

Key value for chemical safety assessment

Relative density at 20C:
1.044

Additional information

A key study was conducted according to OECD TG 109 and Regulation (EC) No 440/2008 method A.3 to determine the relative density of the test item [2016]. Therefore the density was measured at a temperature of 20 °C and 40 °C using the oscillating densitometer. An initial calibration with purified-water was carried out. Subsequently three independent measurements of the test item were performed. The mean relative density of the test item at 20 °C with respect to water at 4 °C was determined to be 1.044 and at 40 °C to be 1.028. No observations were made which cause doubt on the validity of the outcome of the study.

A supporting study was conducted according to OECD TG 109 (1981) to determine the relative density of the test item usinf the pycnometer method [IRI, 1992]. The density was determined in two independent determinations. Using the pycnometer method the density was determined to be 1.0489 ± 0.0020 g/cm3 at 20 °C and the relative density 1.0489 with respect to water at 4 °C respectively. The standard deviation reflects the distinguished correlation of the individual determinations. No observations were made which cause doubt on the validity of the outcome of the study.