1-(2,2,4-trimethyl-3,4-dihydroquinolin-l (2H)-yl)ethanone

Density

Administrative data

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

3 Jul - 9 Jul 2020

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2020

Report date:

2020

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

Hessisches Ministerium für Umwelt, Klimaschutz, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany

Type of method:

air comparison pycnometer (for solids)

Test material

Test material information

Constituent 1

Reference substance name:

1-(2,2,4-trimethyl-3,4-dihydroquinolin-l (2H)-yl)ethanone

EC Number:

855-228-0

Cas Number:

4497-59-0

Molecular formula:

C14 H19 N O

IUPAC Name:

1-(2,2,4-trimethyl-3,4-dihydroquinolin-l (2H)-yl)ethanone

Results and discussion

Density

Type:

relative density

Density:

1.15

Temp.:

20 °C

Remarks on result:

other: Standard deviation: 0.0003 g/cm3 Relative standard deviation: 0.02 %

Any other information on results incl. tables

Two test series with different weights of the test item (Experiment 1: 0.9972 g, Experiment 2: 0.9974 g), technical substance, a white solid, were carried out in helium gas at 20 °C. To ensure the complete purging and thermal equilibration of the system, the first twenty measurements of each experiment were excluded from the evaluation. For averaging, only the results of the last ten measurements were used.

Mean density ρ_P20 for the measurements: 1.15 g/cm³

Standard deviation: 0.0003 g/cm³
Relative standard deviation: 0.02 %

Relative density (compared to water at 4 °C) D₄²⁰ :

D₄²⁰ = ρ_P20 / ρ_W4  = (1.15 g/cm³)/(1.00 g/cm³) = 1.15