disodium 7-(4,6-difluoropyrimidin-2-ylamino)-4-hydroxy-3-(4-methoxy-2-sulfonatophenylazo)naphthalene-2-sulfonate; reaction mass of: disodium 7-(2,4-difluoropyrimidin-6-ylamino)-4-hydroxy-3-(4-methoxy-2-sulfonatophenylazo)naphthalene-2-sulfonate

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

January 07, 1997 - March 03, 1997

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:

1.7 g/cm³

Temp.:

20.9 °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 article was performed with two independent test article samples each at least measured in triplicate. The individual measurements are summarised in table 2.

The relative density of the test article SCARLET RN 1165 was determined to be 1.70 g/cm3 (= 1.70 · 10³ kg/ml) at 20.9 °C using a gas comparison pycnometer.

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	18.341	5.628	16.681	6.831	69.234	156.391
2	18.517	5.680	18.408	7.538	69.142	156.264
3	19.020	5.834	16.495	6.754	69.148	156.288
Mean:					69.175	156.314

Table 2: Determination of the density of the test article

Sample no.	Sample weight [g]	Measurement	p1 (sample) [psi]	p2 (sample) [psi]	V (sample) [cm3]	Density [g/cm3]
1	33.0000	1	16.032	5.374	19.507	1.692	1.693
		2	15.140	5.084	19.489	1.693
		3	15.635	5.250	19.480	1.694
2	39.6960	1	16.633	5.687	23.171	1.713	1.713
		2	16.067	5.494	23.190	1.712
		3	15.288	5.227	23.166	1.714
Mean							1.703

Conclusions:

The relative density of the test article SCARLET RN 1165 was determined to be 1.70 g/cm3 (= 1.70 · 10³ kg/ml) at 20.9 °C using a gas comparison pycnometer.

Executive summary:

The determination of the relative density of the test article 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 20.8 °C ± 0.1 °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 article was performed with two independent test article samples each at least measured in triplicate. The individual measurements are summarised in table 2.

The relative density of the test article SCARLET RN 1165 was determined to be 1.70 g/cm3 (= 1.70 · 10³ kg/ml) at 20.9 °C using a gas comparison pycnometer.

Description of key information

The density of the test item SCARLET RN 1165 was determined using a gas comparison pycnometer.

Key value for chemical safety assessment

Relative density at 20C:

1.7