Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
The study was conducted between 27 April 2018 and 18 May 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
Date of Inspection: 18/07/2017 - 20/07/2017 Date of Issue: 28/11/2017
Type of method:
air comparison pycnometer (for solids)

Test material

Constituent 1
Chemical structure
Reference substance name:
trans-cinnamic acid
EC Number:
205-398-1
EC Name:
trans-cinnamic acid
Cas Number:
140-10-3
Molecular formula:
C9H8O2
IUPAC Name:
3-phenylacrylic acid
Test material form:
solid: particulate/powder
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material:
20171106
- Expiration date of the lot/batch:
10 April 2020

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material:
Room temperature, in the dark, over silica gel

Results and discussion

Density
Key result
Type:
relative density
Density:
1.25 other: unit not required for relative density
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

17.585

6.655

17.470

8.654

90.690

148.946

2

17.448

6.610

18.351

9.091

91.070

149.322

3

17.409

6.595

17.451

8.644

91.096

149.373

Mean reference cell volume : 90.952 cm3

Mean sample cell volume : 149.214 cm3

As the reference cell volume and sample cell volume were within the defined tolerance (90.953 ± 1.0 cm3 and 149.225 ± 1.0 cm3 for 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

(psig)

P2

(psig)

Reference

Cell Volume

(cm3)

Density (kg/m3)

Mean Density (kg/m3)

 

1

A

17.085

6.991

17.892

1.251 x 103

 

1.250 x 103

B

17.421

7.131

17.970

1.246 x 103

C

17.360

7.103

17.876

1.252 x 103

 

2

A

17.357

7.222

21.576

1.252 x 103

 

1.251 x 103

B

17.614

7.331

21.638

1.248 x 103

C

17.353

7.220

21.566

1.252 x 103

Mean density : 1.250 x 103 kg/m3

Relative density : 1.250

Temperature : 20.0 ± 1.0 °C

Duplicate determinations were performed to ensure a reproducibility of less than ± 20 kg/m3 was obtained.

Applicant's summary and conclusion

Conclusions:
The density of the test item has been determined to be 1.250 x 103 kg/m3 at 20.0 ± 1.0 °C: relative density: 1.250.
Executive summary:

The density was determined to be 1.250 x 103 kg/m3 at 20.0 ± 1.0 °C, relative density: 1.250, using a gas comparison pycnometer, designed to be compatible with Method A.3 Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 109 of the OECD Guidelines for Testing of Chemicals, 02 October 2012.