1-(methylamino)-4-[(3-methylphenyl)amino]anthraquinone

Density

Administrative data

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Experimental starting date: 17 October 2017. Experimental completion date: 17 January 2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

pycnometer method

Test material

Test material information

Constituent 1

Reference substance name:

1-(methylamino)-4-[(3-methylphenyl)amino]anthraquinone

EC Number:

229-059-2

EC Name:

1-(methylamino)-4-[(3-methylphenyl)amino]anthraquinone

Cas Number:

6408-50-0

Molecular formula:

C22H18N2O2

IUPAC Name:

1-(methylamino)-4-[(3-methylphenyl)amino]-9,10-dihydroanthracene-9,10-dione

Test material form:

solid: particulate/powder

Details on test material:

Identification: 1-(methylamino)-4-[(3-methylphenyl)amino] anthraquinone
Physical state/Appearance: dark red powder
Batch: 702W01
Purity: 99.4%
Expiry Date: 08 February 2020
Storage Conditions: room temperature in the dark
Intended use/Application: industrial chemical

Results and discussion

Density

Key result

Type:

relative density

Density:

1 320 kg/m³

Temp.:

20 °C

Any other information on results incl. tables

Calibration

The pressure readings and the calculated volume for the reference and sample cells are shown in the following table:

Determination	P1 (psig)	P2 (psig)	P3 (psig)	P4 (psig)	Reference Cell Volume (cm^3)	Sample Cell Volume (cm^3)
1	17.297	6.551	17.282	8.561	90.979	149.238
2	17.355	6.575	17.251	8.549	90.983	149.170
3	17.345	6.570	17.253	8.546	91.049	149.324

Mean reference cell volume   :          91.004 cm³
Mean sample cell volume      :          149.244 cm³

As the reference cell volume and sample cell volume were within the defined tolerance (90.953 ± 1.0 cm³and 149.225 ± 1.0 cm³for the reference and sample cell volumes respectively) the gas comparison pycnometer was therefore considered acceptable for use.

Sample

The pressure readings, calculated volumes and density values obtained for the test item are shown in the following table:

Determination	Replicate	P1(sample) (psig)	P2(sample) (psig)	Volume (cm^3)	Density (kg/m^3)	Mean Density (kg/m^3)
1	A	17.230	7.155	21.101	1.31 x 10^3	1.31 x 10^3
	B	17.320	7.194	21.151	1.31 x 10^3
	C	17.290	7.178	21.043	1.32 x 10^3
2	A	17.235	7.285	24.949	1.33 x 10^3	1.32 x 10^3
	B	17.242	7.293	25.098	1.32 x 10^3
	C	17.245	7.293	25.061	1.32 x 10^3

Mean density             :          1.32 x 10³kg/m³

Relative density         :          1.32

Temperature               :          20.0 ± 1.0 °C

Discussion

Duplicatedeterminations were performed to ensure a reproducibility of less than ± 20 kg/m³was obtained.

Applicant's summary and conclusion

Conclusions:

The density of the test item has been determined to be 1.32 x 103 kg/m3 at 20.0 ± 1.0 °C (relative density: 1.32).