1-(2,4-dimethylphenylazo)-2-naphthol

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:

17-08-2017 – 17-08-2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

Experimental test result performed using standard 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 is determined by using pyknometer. It is the ratio of mass of the unit volume of test item at a stated temperature to mass of the same volume of gas free distilled water at a stated temperature.

GLP compliance:

no

Type of method:

pycnometer method

Key result

Type:

density

Density:

0.47 g/cm³

Temp.:

20 °C

CALCULATIONS:

	Calculated values
	1st Calculation	2nd Calculation
Wo=WPS-WP	7.1660	5.4470
(WA-WB)	7.4780	6.5800
Specific Gravity = WO/[WO + (WA-WB)]	0.4893	0.4528
Specific Gravity; Gs	0.4893	0.4528
Density (g/cm³)	0.4884	0.4519
Mean Density (g/cm³)	0.4702

 

Conclusions:

The density of test item 1-(2,4-dimethylphenylazo)-2-naphthol (CAS No. 3118-97-6) was determined following OECD Guideline 109 and according to the method Adapted from ASTM D854-02 using pyknometer .The mean density of test item was found to be 0.4702 g/cm³ at 20°C and 965.15 hPa.

Executive summary:

The density of test item 1-(2,4-dimethylphenylazo)-2-naphthol (CAS No. 3118-97-6) was determined following OECD Guideline 109 and according to the method Adapted from ASTM D854-02 using pyknometer .The mean density of test item was found to be 0.4702 g/cm³ at 20°C and 965.15 hPa.

Description of key information

The density of test item 1-(2,4-dimethylphenylazo)-2-naphthol (CAS No. 3118-97-6) was determined following OECD Guideline 109 and according to the method Adapted from ASTM D854-02 using pyknometer .The mean density of test item was found to be 0.4702 g/cm³ at 20°C and 965.15 hPa.

Key value for chemical safety assessment

Relative density at 20C:

0.47

Additional information

The density of test item 1-(2,4-dimethylphenylazo)-2-naphthol (CAS No. 3118-97-6) was determined following OECD Guideline 109 and according to the method Adapted from ASTM D854-02 using pyknometer .The mean density of test item was found to be 0.4702 g/cm³ at 20°C and 965.15 hPa.

Other supporting data is based on prediction done using ACD/I-Lab 2.0 and the density is estimated to be 1.14 g/cm3.

As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of density as 0.4702 g/cm³at 20 °C and 965.15 hPa, thus considered as key study for the chemical safety assessment.