Reaction products of 4,4'-methylenebis(2,6-dimethylaniline) and 4-aminobenzenesulfonic acid with 2,4,6-trichloro-1,3,5-triazine, diazotised and subsequently coupled with N-(2-methoxyphenyl)-3-oxobutanamide

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

22 August 2007 to 14 September 2007

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

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 (incl. QA statement)

Type of method:

air comparison pycnometer (for solids)

Key result

Type:

density

Density:

1.274 g/cm³

Temp.:

20 °C

Key result

Type:

relative density

Density:

1.274 other: Dimensionless

Temp.:

20 °C

The test was performed at a temperature of 19.75 °C ± 0.25 °C.

The calibration procedure was performed in triplicate.

The determination of the relative density of the test material was performed with two independent test material samples each measured in triplicate.

The density of the test material was determined to be 1.274 g/cm³ (= 1.274 · 10³ kg/m³) at 20 °C ± 0.5 °C using a gas comparison pycnometer.

The relative density of the test material was determined to be 1.274.

Results of the Calibration

Calibration volume (Vcal): 56.559 cm³

Gas: Helium

Measurement	P1 [psi]	P2 [psi]	P3 [psi]	P4 [psi]	Vref [cm³]	Vcell [cm³]
1	17.565	5.380	17.389	7.118	68.814	155.855
2	17.216	5.269	17.443	7.138	68.662	155.685
3	17.399	5.325	17.613	7.208	68.649	155.657
Mean					68.708	155.732

 

Determination of the Density

Sample No.	Sample weight [g]	Measurement	P1 sample [psi]	P2 sample [psi]	V sample [cm³]	Density [g/cm³]
1	12.993	1	15.431	4.949	10.207	1.273
		2	15.466	4.960	10.198	1.274
		3	15.483	4.963	10.092	1.287
2	14.687	1	15.579	5.029	11.593	1.267
		2	15.474	4.995	11.589	1.267
		3	15.658	5.053	11.530	1.274
Mean						1.274
Standard deviation ± [g/cm³]						0.007

 

Conclusions:

Under the conditions of the study the density of the test material was determined to be 1.274 g/cm³ at 20 °C ± 0.5 °C.
The relative density of the test material was determined to be 1.274.

Executive summary:

The relative density of the test material was assessed according to OECD Test Guideline 109 and EU Method A.3. in compliance with GLP using a gas comparison pycnometer.

The test material was dried in a desiccator over silica gel for about 22 days before the first measurement and about 23 days for the second measurement before use.

During the study, a reference cell of a defined volume (Vref) was pressurised with helium to a pressure of not more than 20 psi (137.9 kPa) and the pressure was read. Subsequently, the volume of the sample cell (being filled with helium at ambient temperature) was added to the pressure system, resulting in a lower pressure, which was also read.

The procedure was repeated until reproducible results were obtained (repeatability of < ± 0.02 g/cm³). The sample cell containing the test material was reweighed to determine the mass of the tested material.

The test was performed at a temperature of 19.75 °C ± 0.25 °C.

A calibration procedure was performed in triplicate.

The determination of the relative density of the test material was performed with two independent test material samples each measured in triplicate.

Under the conditions of the study the density of the test material was determined to be 1.274 g/cm³ at 20 °C ± 0.5 °C.

The relative density of the test material was determined to be 1.274.

Description of key information

Under the conditions of the study the density of the test material was determined to be 1.274 g/cm³ at 20 °C ± 0.5 °C.

The relative density of the test material was determined to be 1.274.

Key value for chemical safety assessment

Relative density at 20C:

1.274

Additional information

The relative density of the test material was assessed according to OECD Test Guideline 109 and EU Method A.3. in compliance with GLP using a gas comparison pycnometer. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

The test material was dried in a desiccator over silica gel for about 22 days before the first measurement and about 23 days for the second measurement before use.

During the study, a reference cell of a defined volume (Vref) was pressurised with helium to a pressure of not more than 20 psi (137.9 kPa) and the pressure was read. Subsequently, the volume of the sample cell (being filled with helium at ambient temperature) was added to the pressure system, resulting in a lower pressure, which was also read.

The procedure was repeated until reproducible results were obtained (repeatability of < ± 0.02 g/cm³). The sample cell containing the test material was reweighed to determine the mass of the tested material.

The test was performed at a temperature of 19.75 °C ± 0.25 °C.

A calibration procedure was performed in triplicate.

The determination of the relative density of the test material was performed with two independent test material samples each measured in triplicate.

Under the conditions of the study the density of the test material was determined to be 1.274 g/cm³ at 20 °C ± 0.5 °C.

The relative density of the test material was determined to be 1.274.