Reaction mass of N-(2-ethylhexyl)-1-[[2-methyl-4-[(4-methylphenyl)azo]phenyl]azo]naphthalen-2-amine and N-(2-ethylhexyl)-1-[[2-methyl-4-[(2-methylphenyl)azo]phenyl]azo]naphthalen-1-amine

Density

Link to relevant study record(s)

Reference

Endpoint:

density, other

Remarks:

Density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

30-08-2017 – 30-08-2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

Experimental test result performed using standard OECD test guidelines.

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Principles of method if other than guideline:

The density of Test item N-(2-ethylhexyl)-1-[[2-methyl-4-[(4-methylphenyl)azo]phenyl]azo]naphthalen-2-amine (CAS No. 93964-07-9) was determined
following OECD guideline 109 and according to the Indian standard method for determinationof density of liquids [IS 4730:1994 (Reaffirmed 2010)].

GLP compliance:

not specified

Type of method:

pycnometer method

Specific details on test material used for the study:

- Name of the test material: N-(2-ethylhexyl)-1-[[2-methyl-4-[(4-methylphenyl)azo]phenyl]azo]naphthalen-2-amine
- Regulatory name: N-(2-ethylhexyl)-1-[[2-methyl-4-[(4-methylphenyl)azo]phenyl]azo]naphthalen-2-amine
- Molecular formula: C32H37N5
- Molecular weight: 491.6793 g/mol
- Smiles: CCCCC(CC)CNc1ccc2ccccc2c1/N=N/c3ccc(cc3C)/N=N/c4ccc(cc4)C
- InChI: 1S/C32H37N5/c1-5-7-10-25(6-2)22-33-31-19-15-26-11-8-9-12-29(26)32(31)37-36-30-20-18-28(21-24(30)4)35-34-27-16-13-23(3)14-17-27/h8-9,11-21,25,33H,5-7,10,22H2,1-4H3/b35-34+,37-36+
- Substance type: Organic
Physical form: Dark red clear liquid

Key result

Type:

density

Density:

1.098 g/cm³

Temp.:

20 °C

Remarks on result:

other: at 970.3 hPa

TEST ITEM DESCRIPTION AND RESULTS

FOR LIQUIDS:

By Pyknometer Method: 

S.			Observed Values
	Method Details		1st	2nd
No.
			Observation	Observation
1	Guideline	OECD 109
2	Method	IS 4730 : 1994 (Reaffirmed 2010) –
		Method for Determination of Density
		of Liquids (First Revision)
3	Principle of	Determination of the mass at a given
	Method	temperature of a volume of the
		material contained in a density bottle
		(pyknometer) and determination of
		the volume of the latter by
		determining the mass of the
		corresponding volume of water at the
		same temperature. The density is
		obtained by dividing the mass of
		material by its volume.
4	Test	(°C)	20°C	20°C
	temperature
5	Atmospheric	(hPa)	970.2	970.4
	pressure
6	Weight of	g	29.962	31.115
	empty dry
	pyknometer(X)
7	Weight of	g	85.322	85.275
	pyknometer +
	test item(Y)
8	Apparent	(M1 = Y - X)g	55.36	54.16
	mass of test
	item(M1)
9	Weight of	g	80.325	80.323
	pyknometer +
	water(Z)
10	Apparent	(M2 = Z - X)g	50.363	49.208
	mass of water
	(M2)

                                                                                                                                                        

11	Buoyancy	A=(*ρat × M2)	0.0588	0.0574
	correction(A)
12	Density of	g/cm³ (ρtw)	0.9982	0.9982
	water** at test
	temperature

*ρat=density of air at 27°C and 760 mm Hg pressure=0.001168 g/cm³**Density of water referred from the Table 1 of the was method.

CALCULATIONS:

 

FOR LIQUIDS

 

Density = (M1+A) X ρtw

(M2+A)

 1st calculated density                2nd calculated density

 

55.4188                                                                                          54.2174

 

____________ X 0.9982 = 1.0971 g/cm³              ____________ X 0.9982 = 1.0985 g/cm³

 

50.4218                                                                                          49.2654

 

 Average density                     = 1.0978 g/cm³

Conclusions:

The mean density of N-(2-ethylhexyl)-1-[[2-methyl-4-[(4-methylphenyl)azo]phenyl]azo]naphthalen-2-amine (CAS No. 93964-07-9) was found to be
1.0978 g/cm³at 20 °C and 970.3 hPa..

Executive summary:

The density of test item N-(2-ethylhexyl)-1-[[2-methyl-4-[(4-methylphenyl)azo]phenyl]azo]naphthalen-2-amine (CAS No. 93964-07-9) was determined following OECD Guideline 109 and according to the IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) usingglass pyknometer. The mean density of test item was found to be 1.0978 g/cm³at 20 °C and 970.3 hPa..

Description of key information

The mean density of N-(2-ethylhexyl)-1-[[2-methyl-4-[(4-methylphenyl)azo]phenyl]azo]naphthalen-2-amine (CAS No. 93964-07-9) was found to be 1.0978 g/cm³at 20 °C and 970.3 hPa..

Key value for chemical safety assessment

Relative density at 20C:

1.098

Additional information

The density of test item N-(2-ethylhexyl)-1-[[2-methyl-4-[(4-methylphenyl)azo]phenyl]azo]naphthalen-2-amine (CAS No. 93964-07-9) was determined following OECD Guideline 109 and according to the IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) usingglass pyknometer. The mean density of test item was found to be 1.0978 g/cm³at 20 °C and 970.3 hPa..