N,N'-bis(5,5-dimethyl-1,3,2-dioxaphosphinane-2-oxide-2-yl)ethane-1,2-diamine

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

08/05/2015 to 09/05/2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Version / remarks:

EU Regulation (EC) 440/2008, Annex Part A test A3.

Deviations:

not specified

GLP compliance:

yes (incl. QA statement)

Type of method:

pycnometer method

Specific details on test material used for the study:

No further details specified in the study report.

Dynamic viscosity of test material:

Not applicable - test substance is a solid at room temperature.

Key result

Type:

density

Density:

1 334 kg/m³

Temp.:

20 °C

Key result

Type:

relative density

Density:

1.334 other: dimensionless

Temp.:

20 °C

Determining the Density of the Immersion Liquid

Mass of Empty Pycnometer	23.93	Volume of Pycnometer (ml)	25.0
Mass water & Pycnometer	48.93	Mass of water (mw)	25.0
Density of Water (g/cm^3) (ρw,t)	1.000
Mass of IL & Pycnometer	47.96	Mass IL in Pycnometer (g) (m1)	24.03
Calculated Density of IL (g/cm^3)	0.961	Density of IL (kg/m^3) ρIL	961

 

Equation 1 (Calculation for the density of water)

Mass of water / volume of pycnometer = Density of water

 

Equation 2 (Calculation for the density of immersion liquid)

ρ_IL= (m₁/ m_w) x ρ_w,t

 

where:

m₁is the mass of the immersion liquid

m_wis the mass of water

ρ_w,t is the density of water at temperature t

 

Calculated value for the density of immersion liquid = 961 kg.m^-3@ 20 °C

 

Determining the Density of the Sample

Run Number	1	2
Mass of Empty Pycnometer (g)	23.93	23.93
Mass of Sample & Pycnometer (g)	30.13	32.71
Mass of Sample added to empty Pycnometer (g) ms	6.20	8.78
Mass of Sample, Pycnometer & immersion liquid	49.69	50.41
Mass of immersion liquid added (g) m2	19.56	17.70
Calculated Density of Sample (g/cm^3)	1.333	1.334
Density of Sample (kg/m^3)	1333	1334
Mean Result (kg.m^-3)	1334

 

Equation 3 (Calculation for the density of the sample)

ρs,t = m_sρ_IL/ (m₁– m₂)

 

where:

m_sis the mass, in grams, of the sample;

m₁is the mass, in grams, of the immersion liquid required to fill the empty pycnometer;

m₂is the mass, in grams, of immersion liquid added to fill the pycnometer containing the sample;

ρ_ILis the density of the immersion liquid (as determined by equation 2)

Conclusions:

Relative density (D204) 1.334
Sample density 1334 kg.m-3 @ 20°C

Executive summary:

The test is conducted to determine the relative density of a solid or liquid substance.

For solids or liquids, pycnometers of various shapes and with known volumes may be employed. The density is calculated from the difference in weight between the full and empty pycnometer and its known volume. The tests are run at a constant temperature, preferably 20°C, and at least two measurements are generally performed.

The test is conducted in accordance with the procedure described in EU Regulation (EC) 440/2008, Annex Part A test A3.

 

Relative density (D²⁰₄) 1.334

Sample density 1334 kg.m-3 @ 20 °C

Description of key information

Relative density (D²⁰₄) 1.334

Sample density 1334 kg.m-3 @ 20 °C

Key value for chemical safety assessment

Relative density at 20C:

1.334

Additional information

The density is calculated from the difference in weight between the full and empty pycnometer and its known volume. The tests are run at a constant temperature, preferably 20°C, and at least two measurements are generally performed.

 

Relative density (D²⁰₄) 1.334

Sample density 1334 kg.m-3 @ 20 °C