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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:
11 November 2003
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)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
Deviations:
no
GLP compliance:
yes
Type of method:
air comparison pycnometer (for solids)
Remarks:
helium gas
Type:
density
Density:
1.18 g/cm³
Temp.:
20 °C
Type:
relative density
Density:
1.18
Temp.:
20 °C

Table 1: Results

Test Temperature (ºC) Sample weight (g) Mean density (g/cm3)
1 19.9 13.8065 1.1779
2 19.9 13.8064 1.1755
Mean density 1.1767

Rounding the result to two decimal places:

Density = 1.18 g/cm3 = 1.18 x 103 kg/m3

Relative density = 1.18

 

The sample was tested as received. The test was carried out twice, the final instrument reading in each case is the average of three consecutive runs.

Conclusions:
Under the conditions of the test, the density and relative density of the test material was determined using a gas comparison pycnometer to be 1.18 g/cm^3 and 1.18, respectively, at 20 °C. The study is considered to be reliable, relevant and adequate for risk assessment purposes.
Executive summary:

The relative density of the test material was determined in accordance with the standardised guidelines OECD 109, EU Method A.3 and EPA OPPTS 830.7300 using a gas comparison pycnometer with helium gas and the displaced fluid. Under the conditions of the test, the density and relative density of the test material was determined to be 1.18 g/cm3 and 1.18, respectively, at 20 °C.

Description of key information

Relative density: 1.18, 20 °C, OECD 109, Jackson 2003

Key value for chemical safety assessment

Relative density at 20C:
1.18

Additional information

The relative density of the test material was determined in accordance with the standardised guidelines OECD 109, EU Method A.3 and EPA OPPTS 830.7300 using a gas comparison pycnometer with helium gas and the displaced fluid. Under the conditions of the test, the density and relative density of the test material was determined to be 1.18 g/cm3and 1.18, respectively, at 20 °C.

The study was performed in line with GLP and accepted standardised guidelines with a high standard of reporting. The study was assigned a reliability score of Klimisch 1 and considered suitable for assessment as an accurate reflection of the test substance.

The available data are considered complete and the result determined, 1.18 at 20 °C, was taken forward for risk assessment.