Registration Dossier

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:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
pycnometer method

Test material

Reference
Name:
Unnamed
Type:
Constituent
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 (cm3)

Sample Cell Volume (cm3)

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
(cm3)

Density
(kg/m3)

Mean Density (kg/m3)

1

A

17.230

7.155

21.101

1.31 x 103

1.31 x 103

B

17.320

7.194

21.151

1.31 x 103

C

17.290

7.178

21.043

1.32 x 103

2

A

17.235

7.285

24.949

1.33 x 103

1.32 x 103

B

17.242

7.293

25.098

1.32 x 103

C

17.245

7.293

25.061

1.32 x 103

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).