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Diss Factsheets

Physical & Chemical properties

Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1997-10-16 to 1997-12-22
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
other: 92/69/EWG, A.3 (Pycnometer method)
Version / remarks:
1992
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Version / remarks:
1995
Deviations:
no
GLP compliance:
yes
Type of method:
pycnometer method
Key result
Type:
relative density
Density:
1.23 other: (corresponds to D4(20))
Temp.:
20 °C

Table 1 Determination of the density of the test item (measurement 1)

Sample mass: 3.5793 g

Added volume (Va): 86.44 cm3

Cell holder volume (Vc): 33.85 cm3

Gas: Helium

Experiment
number

P7 [psig]

P8 [psig]

Vp [cm3]

Density
[g/cm3]

1

19.396

5.114

2.898

1.235

2

19.506

5.141

2.915

1.228

mean

1.232

Table 2 Determination of the density of the test item (measurement 2)

Sample mass: 3.7706 g

Added volume (Va): 86.44 cm3

Cell holder volume (Vc): 33.85 cm3

Gas: Helium

Experiment
number

P7 [psig]

P8 [psig]

Vp [cm3]

Density
[g/cm3]

1

19.338

5.079

3.060

1.232

2

19.499

5.121

3.063

1.231

mean

1.232
Conclusions:
The density of the test item was determined to be 1.23 g/cm^3 at 20 °C using a gas comparison pycnometer.
Executive summary:

The study procedure described in this report is based on the following guidelines:

European Economic Community (EEC), EEC directive 92/69 EEC, Part A, Methods for the determination of physico-chemical properties, A.3 "Relative density", EEC Publication No. L383, December 1992.

Organization for Economic Co-operation and Development (OECD), OECD guidelines for Testing of Chemicals, guideline no. 109: "Density of liquids and solids", July 27, 1995.

The density of the solid test substance 1.23 g/cm3 using a gas comparison pycnometer. Temperature of measurement was 20.0 + 1.0°C.

The D20 = 1.23.

Description of key information

The test item has a relative density of 1.23 (reference 4.4 -1).

Key value for chemical safety assessment

Relative density at 20C:
1.23

Additional information

The study procedure described in this report is based on the following guidelines:

European Economic Community (EEC), EEC directive 92/69 EEC, Part A, Methods for the determination of physico-chemical properties, A.3 "Relative density", EEC Publication No. L383, December 1992.

Organization for Economic Co-operation and Development (OECD), OECD guidelines for Testing of Chemicals, guideline no. 109: "Density of liquids and solids", July 27, 1995.

The density of the solid test substance 1.23 g/cm3 using a gas comparison pycnometer. Temperature of measurement was 20.0 + 1.0°C.

The D20 = 1.23.