2-Naphthalenol, 1-[2-[2-ethyl-4-[2-(2-ethylphenyl)diazenyl]phenyl]diazenyl]-, ar-heptyl derivs.

Density

Administrative data

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Test guideline 3

Qualifier:

according to guideline

Guideline:

other: CIPAC MT 3.2

GLP compliance:

yes

Type of method:

pycnometer method

Test material

Test material information

1

Reference substance name:

Reaction products of 2-Ethylaniline with heptyl naphthalen-2-ol

Cas Number:

1401000-07-4

Molecular formula:

Not applicable (UVCB Substance)

IUPAC Name:

Reaction products of 2-Ethylaniline with heptyl naphthalen-2-ol

Test material form:

solid

Specific details on test material used for the study:

Batch number: 80-47-16

Results and discussion

Density

Type:

relative density

Density:

0.972 other: dimensionless

Temp.:

20 °C

Any other information on results incl. tables

The density value at 20°C was calculated according to the formula:

 

                                      0.9982 x (W4 - W3)

Density (g/ml) = ____________________________

                                   (W2 - W1) - (W5 - W4)

 

where:

 

W1      =         Weight of pyknometer for WE determination (g)

W2      =         Weight of pyknometer filled with water(g)

W3      =         Weight of pyknometer (g)

W4      =         Weight of pyknometer with an amount of the test item (g)

W5      =         Weight of pyknometer with test item and filled with water(g)

0.9982 =         Tabulated value for the specific gravity of water at 20°C (g/mL)

 

 

The specific gravity of the test item at 20°C is determined by the ratio between the mass of a volume of the test item and the mass of the same volume of water: it was obtained according to the formula:

                                                                                   density (g/mL)

                                               Specific Gravity = _______________

                                                                                   0.9982 (g/mL)

 

Since the density of distilled water at 4°C is 1.0000 g/mL, the relative density, (D²⁰₄) defined as the ratio between the mass of a volume of the test item at 20°C and the mass of the same volume of water at 4°C, is the dimensionless numeric value of the density.

Determination		W1 (g)	W2 (g)	W3 (g)	W4 (g)	W5 (g)	Density (g/mL)
A		35.8262	40.8695	35.8262	36.1690	40.8610	0.9740
B		36.8848	41.9259	36.8848	37.1724	41.9174	0.9695
Mean value : 0.9718 Delta % : 0.46% Specific gravity (pure number) : 0.9735 Relative density (pure number) : 0.9718

 

Applicant's summary and conclusion

Conclusions:

The density of the substance is 0.9718 g/ml at 20°C.