Phenyl 4-hydroxybenzoate

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2018-01-05 to 2018-02-15

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

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)

Type of method:

other: gas comparison pycnometer

Specific details on test material used for the study:

CAS No.: 17696-62-7
Batch: 018964K19K
Expiry date: 02 August 2018
Purity: 99.1%
Appearance: White powder
Storage: In darkness at room temperature

Key result

Type:

relative density

Density:

1.276 other: no unit

Temp.:

18.7 °C

Assay No. 1:

Test item sample weight (M_E): 2.2880 g

Reference volume (V_A): 79.444 cm³

Volume of sample cell holder (V_C): 27.678 cm³

Temperature during the assay: 18.5 °C

Table 1: Results of assay No. 1 (The run No. 1 was not taken into account as it did not comply with the quality criteria)

Data	P2 (PSIG)	P3 (PSIG)	VP (cm^3)	Density (g/cm^3)	Relative density	Mean relative density
Run No. 2	17.076	4.197	1.7888	1.2790	1.2791	1.279 ± 0.001
Run No. 3	17.136	4.212	1.7868	1.2805	1.2805
Run No. 4	17.097	4.202	1.7902	1.2781	1.2781

Assay No. 2:

Test item sample weight (M_E): 2.6223 g

Reference volume (V_A): 79.444 cm³

Volume of sample cell holder (V_C): 27.678 cm³

Temperature during the assay: 18.9 °C

Table 2: Results of assay No. 2 (The runs No. 1 and 2 were not taken into account as they did not comply with the quality criteria)

Data	P2 (PSIG)	P3 (PSIG)	VP (cm^3)	Density (g/cm^3)	Relative density	Mean relative density
Run No. 3	17.014	4.149	2.0571	1.2748	1.2748	1.273 ± 0.001
Run No. 4	17.028	4.152	2.0605	1.2727	1.2727
Run No. 5	17.077	4.164	2.0600	1.2729	1.2730

Conclusions:

The mean relative density of the test item was D = 1.276 ± 0.003 at 18.7 °C.

Executive summary:

The mean relative density of the test item, which was determined by the pycnometer method according to OECD guideline 109, was D = 1.276 ± 0.003 at 18.7 °C.

Description of key information

The mean relative density of the test item, which was determined by the pycnometer method according to OECD guideline 109, was D = 1.276 ± 0.003 at 18.7 °C.

Key value for chemical safety assessment

Relative density at 20C:

1.276