Reaction mass of N,N,N',N'-tetrabutylmethylenediamine and dibutylamine

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

23 March 2017 - 11 August 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Study was conducted in accordance with international guidelines and in accordance with GLP. All guideline validity criteria were met.

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Version / remarks:

Regulation (EC) 440/2008 of 30 May 2008

Deviations:

no

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Version / remarks:

02 October 2012

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

oscillating densitimeter

Dynamic viscosity of test material:

Viscosity is not a REACH data requirement below Annex IX. In the absence of a prescribed data requirement, dynamic viscosity was assessed using expert judgement. The test item was deemed to have a dynamic viscosity (significantly) less than 5 Pa s. The test item is not regarded to be a viscous liquid using expert judgement.

Key result

Type:

relative density

Remarks:

Mean Relative Density

Density:

0.812 other: Dimensionless quantity

Temp.:

19.9 °C

Type:

relative density

Remarks:

Measurement 1

Density:

0.812 other: Dimensionless quantity

Temp.:

19.9 °C

Type:

relative density

Remarks:

Measurement 2

Density:

0.812 other: Dimensionless quantity

Temp.:

19.9 °C

Table 3:       Results of duplicate determinations of density

	Temperature (℃)	Density (g/cm^3)	Relative Density
1	19.9	0.8117	0.8117
2	19.9	0.8117	0.8117
Mean	19.9	0.8117	0.8117
Absolute Deviation	0.0	0.0000	0.0000
Relative Deviation (%)	0.0	0.00	0.00

 

Relative density has been determined using a nominal density of water at 4°C of 0.999972 g/cm³

Conclusions:

The relative density of the test item was determined to be  0.8117 at 20 ˚C.

Executive summary:

EU Method A.3. – The relative density of the test item was determined utilising an oscillating densitometer.  The procedure employed was designed to be compatible with Method A.3. Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008.

Two determinations were carried out.  An instrumentation check was performed using ultra-pure water.  The measuring cell was cleaned put and dried.  Approximately 1 cm3 of a visually bubble free, homogenous sample of test item was injected into the measuring cell.  The density of the test item was determined.  This determination was performed twice at 20.0 °C ± 0.2 °C to acquire an average value.

The relative density (D420) of the test item was calculated to be 0.8117, based on the ratio of the measured density of the test item relative to the density of water a 4 °C i.e.;

 

D₄²⁰ =r_{test item}/r_water

where:

r_{test item}= density of test item at 20.0 °C (g/cm³)

r_water= density of water at 4.0 °C (g/cm³)

Description of key information

Relative Density: D²⁰₄= 0.8117; EU Method A.3.; C Bär (2017)

Key value for chemical safety assessment

Relative density at 20C:

0.812

Additional information

EU Method A.3. – The relative density of the test item was determined utilising an oscillating densitometer.  The procedure employed was designed to be compatible with Method A.3. Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008.

Two determinations were carried out.  An instrumentation check was performed using ultra-pure water.  The measuring cell was cleaned put and dried.  Approximately 1 cm3 of a visually bubble free, homogenous sample of test item was injected into the measuring cell.  The density of the test item was determined.  This determination was performed twice at 20.0 °C ± 0.2 °C to acquire an average value.

 

The relative density (D₄²⁰) of the test item was calculated to be 0.8117, based on the ratio of the measured density of the test item relative to the density of water a 4 °C i.e.;

 

D₄²⁰ = r_{test item}/r_water

where:

r_{test item}= density of test item at 20.0 °C (g/cm³)

r_water= density of water at 4.0 °C (g/cm³)