trans-cinnamic acid

Density

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 guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Deviations:

no

Test guideline 2

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

Test material information

Constituent 1

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 (cm^3)	Sample Cell Volume (cm^3)
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 (cm^3)	Density (kg/m^3)	Mean Density (kg/m^3)
1	A	17.085	6.991	17.892	1.251 x 10^3	1.250 x 10^3
	B	17.421	7.131	17.970	1.246 x 10^3
	C	17.360	7.103	17.876	1.252 x 10^3
2	A	17.357	7.222	21.576	1.252 x 10^3	1.251 x 10^3
	B	17.614	7.331	21.638	1.248 x 10^3
	C	17.353	7.220	21.566	1.252 x 10^3

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.