Registration Dossier

Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 22-12-2017 to 25-07-2018
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:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
Qualifier:
according to
Guideline:
other: ISO 3507. (1999). Laboratory glassware – Pyknometers
Deviations:
no
Qualifier:
according to
Guideline:
other: NF T 20-053. (1985). Produits chimiques à usage industriel – Détermination de la masse volumique des solides en poudre et des liquides – Méthode pycnométrique
Deviations:
no
Qualifier:
according to
Guideline:
other: ISO 758. (1976). Liquid chemical products for industrial use - Determination of density at 20 degrees C
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
pycnometer method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Dynamic viscosity of test material:
Below 500 Pa.s

Results and discussion

Densityopen allclose all
Key result
Type:
density
Density:
797.7 kg/m³
Temp.:
20 °C
Key result
Type:
relative density
Density:
0.798 other:
Temp.:
20 °C

Any other information on results incl. tables

Density of Tri-n-hexylamine:

Results of the two determinations are reported in the following table:

Measurement

Determination

1

2

Temperature (°C)

20.0

20.0

Mass of the empty pycnometer (g)

31.43742

31.43742

Mass of the pycnometer filled with ultrapure water (g)

81.48080

81.48080

Mass of the pycnometer filled with the test item (g)

71.41375

71.41681

Density of the test item (kg/m3)

797.6

797.7

Mean Density (kg/m3)

797.7

 

The two determinations are within the validity criteria of the method: (less than 1% of difference).

No additional determination was performed.

Applicant's summary and conclusion

Conclusions:
The density of the test item Tri-n-hexylamine has been determined to be 797.7 kg/m3 at 20.0 +/- 0.1°C (mean of two determinations).
The relative density of the test item was determined to be D20/4 = 0.798.
Executive summary:

A study was performed to determine the density of the test item Tri-n-hexylamine. The method followed was designed to be compliant with the OECD Guideline for Testing of Chemicals No. 109, "Density of Liquids and Solids"(2012) and the Method A.3 of Commission Regulation No. 440/2008, “RelativeDensity”. The test was performed under GLP. In this method, the density is determined at a specific

temperature using a pycnometer. Density is calculated from the difference in weight between the full and the empty pycnometer and its volume. The pycnometer volume is determined by carrying out the experiment at the selected temperature with the quantity of ultrapure water required to fill the pycnometer. Two trials were conducted. The following results were obtained:

Trial       Density (kg/m3) at 20.0 +/- 0.1°C

1            797.6

2            797.7

Mean      797.7

These values respect validity criteria (less than 1% of difference). Moreover, the bath used to maintain the pycnometer at 20°C did not vary by more than 0.1°C.

The density of the test item was determined to be 797.7 kg/m3 at 20.0 +/- 0.1°C (mean value of two independent determinations).

The relative density of the test item was determined to be D20/4 = 0.798