Disodium {sulfonylbis[4,1-phenylenediazene-2,1-diyl(1-ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-5,3-diyl)]}dimethanesulfonate

Density

Administrative data

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Study conducted between 18-Oct and 20- Oct-2010

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: see 'Remark'

Remarks:

Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results. The study report was conclusive, done to a valid guideline and the study was conducted under GLP conditions.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2010

Report date:

2010

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

air comparison pycnometer (for solids)

Test material

Test material information

Constituent 1

Reference substance name:

Acid Yellow RN 2903

IUPAC Name:

Acid Yellow RN 2903

Details on test material:

Identification: Acid Yellow RN 2903
Batch Number: Vers. Kilo 6, 26.05.2009
Purity: 65.7 %
Expiry Date: August 01, 2015
Storage Conditions: At room temperature at about 20 °C

Results and discussion

Density

Type:

relative density

Density:

1.588 other:

Temp.:

19.7 °C

Any other information on results incl. tables

The test was performed at a temperature of 19.7 °C ± 0.1 °C.

 

The calibration procedure was performed in triplicate. The individual measurements and the results are presented in Table 1(below).

 

The determination of the relative density of the test item was performed with two independent test item samples each measured in triplicate. The individual measurements are summarized in Table 2 (below).

 

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

 

The density of the test item Acid Yellow RN 2903 was determined to be 1.588 g/cm³ at 19.7 °C ± 0.1 °C using a gas comparison pycnometer.

Table 1       Results of the Calibration

Measurement	p1	p2	p3	p4	V ref	V cell
	[psi]	[psi]	[psi]	[psi]	[cm³]	[cm³]
1	17.696	5.951	18.280	6.857	6.970	13.757
2	17.725	5.960	18.124	6.797	6.975	13.769
3	17.984	6.047	18.430	6.911	6.981	13.780
Mean:					6.975	13.769

 

 

                  Calibration volume (V_cal):            2.145 cm³

 

                  Gas:                                            Helium

 

 

Table 2       Determination of the Density of Acid Yellow RN 2903

 

Sample No.	Sample Weight [g]	Measurement	p1 (sample) [psi]	p2 (sample) [psi]	V (sample) [cm^3]	Density   [g/cm^3]
1	2.846	1	16.325	6.007	1.787	1.592
		2	16.312	6.004	1.793	1.587
		3	15.967	5.877	1.793	1.587
2	2.944	1	15.907	5.874	1.854	1.588
		2	16.091	5.945	1.864	1.579
		3	16.556	6.111	1.846	1.595
Mean:						1.588
Standard deviation ±						0.005

 

See attachment for full calulation details

Calculation of the relative density

 D₄²⁰ = 1.588 g/cm³/ 0.99997 g/cm³= 1.588

Applicant's summary and conclusion

Conclusions:

The relative density of Acid Yellow RN 2903 was determined to be 1.588 at 19.7 °C.

Executive summary:

The purpose of the study was to determine the relative density of the test item at a specific temperature by means of a gas comparison pycnometer.

 

The density of the test item Acid Yellow RN 2903 was determined to be 1.588 g/cm³ at 19.7 °C ± 0.1 °C using a gas comparison pycnometer.

 

The relative density of Acid Yellow RN 2903 was determined to be 1.588.