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Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
24 December 2018 - 28 February 2019
Reliability:
1 (reliable without restriction)
Qualifier:
equivalent or similar to guideline
Guideline:
EU Method A.3 (Relative Density)
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Qualifier:
equivalent or similar to guideline
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
GLP compliance:
yes
Type of method:
pycnometer method
Specific details on test material used for the study:
Identification: 4,4'-(4-methylpentane-2,2-diyl)bis((heptyloxy)benzene)
Batch (Lot) Number: AS455433
Expiry date: 01 November 2020 (retest date) (taken from label)
Physical Description: Colourless to light yellow viscous liquid
Purity/Composition: 98.5%
Storage Conditions: At room temperature protected from light
Key result
Type:
density
Density:
ca. 0.952 g/cm³
Temp.:
20 °C
Key result
Type:
relative density
Density:
ca. 0.952
Temp.:
20 °C
Conclusions:
A pycnometer was used for the determination of the density and relative density of 4,4'-(4-methylpentane-2,2-diyl)bis((heptyloxy)benzene).
The density of the test item at 20ºC was 0.952 g/cm3 (0.952 x 10^3 kg/m3).
The relative density was 0.952.
Executive summary:

The density (ρ) and relative density (20 4 D ) of the test item were determined using a pycnometer with a volume of 10 mL. The density of the test item was calculated from the difference in weight between the full and empty pycnometer and its volume. The volume of the pycnometer was determined first. The pycnometer was weighed empty. Then it was filled with water, dried on the outside and weighed again. The temperature of the water was measured. The procedure was performed in duplicate. The mean volume of the pycnometer was calculated. The pycnometer was filled with test item, dried on the outside and weighed. The temperature of the test item was measured. The test was performed in duplicate. The mean density and relative density of the test item were determined. Measurements were performed at 20.0 ± 0.5°C. Weightings were performed on an analytical balance with an accuracy of 0.1 mg. The test item was protected from light.

The density of the test item at 20ºC was 0.952 g/cm3 (0.952 x 10^3 kg/m3).

The relative density was 0.952.

Description of key information

A pycnometer was used for the determination of the density and relative density of 4,4'-(4-methylpentane-2,2-diyl)bis((heptyloxy)benzene).

The density of the test item at 20ºC was 0.952 g/cm3 (0.952 x 10^3 kg/m3).

The relative density was 0.952.

Key value for chemical safety assessment

Relative density at 20C:
0.952

Additional information