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Physical & Chemical properties

Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
June 26, 2002 - October 28, 2002
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:
adopted July 27, 1995
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Version / remarks:
EEC Publication No. L383, December 1992
GLP compliance:
yes
Type of method:
pycnometer method
Key result
Type:
relative density
Density:
1.542 g/cm³
Temp.:
20 °C

The calibration procedure was performed in triplicate. The individual measurements and the results are shown in Table 1.

The determination of the relative density of the test item was performed with two independent test item samples each at least measured in triplicate. The individual measurements are summarised in Table 2.

The tabulated values in Tables 1 and 2 represent rounded results, which were obtained by calculation using the exact raw data.

Table 1: Results of the Calibration

Calibration volume (Vcal): 56,559 cm3

Gas:Helium

 Measurement  p1 [psi]    p2 [psi]    p3 [psi]   p4 [psi]     V ref [cm3]  V cell [cm3]
 1 17.454 5.352  17.395 7.120 69.135  156.329 
 2  17.425 5.340  17.450  7.142  68.990   156.132
 3  17.516 5.368 17.318 7.088  68.995  156.138
 Mean:              69.040  156.200

 

Table 2: Determination of the Density of Red Rwa 4565

   Sample no.   Sample weight [g]   Measurement    p1 (sample) [psi]   p2 (sample) [psi]   V (sample) [cm3]    Density [g/cm3] 
1 38.307  1  15.190  5.233  24.835  1.542  1.543
 2  15.678  5.401 24.831   1.543
 3  15.503  5.340  24.804  1.544
2 36.185  1  15.604  5.332  23.195  1.560  1.542
 2  15.657  5.362  23.643  1.530
 3  15.700  5.375  23.579  1.535
 Mean:                    1.542
Standard deviation [+-g/cm3]:                     0.001

 

Conclusions:
The density of the test item Red Rwa 4565 was determined to be 1.5429/cm3 (= 1.542 E3 kg/m3) at 20.0 °C using a gas comparison pycnometer.
Executive summary:

The determination of the relative density of the test item was performed in accordance with the EEC Directive 92/69, Part A. Methods for the determination of physico-chemical properties, A.3 "Relative density" and the OECD Guideline for Testing of Chemicals, No. 109, "Density of Liquids and Solids" using a gas comparison pycnometer.

The test was performed at a temperature of 20.0 °C.

The calibration procedure was performed in triplicate. The determination of the relative density of the test item was performed with two independent test item samples each at least measured in triplicate.

The density of the test item Red Rwa 4565 was determined to be 1.5429/cm3 (= 1.542 E3 kg/m3) at 20.0 °C using a gas comparison pycnometer.

Description of key information

The density of the test item Red Rwa 4565 was determined using a gas comparison pycnometer.

Key value for chemical safety assessment

Relative density at 20C:
1.542

Additional information