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Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
15 March 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted according to OECD 109 and EU A.3 guidelines, under GLP without deviation and with certificate of analysis included.
Reason / purpose:
reference to other study
Reason / purpose:
reference to same study
Reference:
Composition 0
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
not specified
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Deviations:
not specified
GLP compliance:
yes (incl. certificate)
Remarks:
2017-01-10
Type of method:
pycnometer method
Test material information:
Composition 1
Type:
relative density
Density:
911.2 kg/m³
Temp.:
20 °C
Remarks on result:
other: Trial 1 - relative density at 20°C in reference with water at 4°C
Type:
relative density
Density:
910.9 kg/m³
Temp.:
20 °C
Remarks on result:
other: Trial 2 - relative density at 20°C in reference with water at 4°C
Key result
Type:
relative density
Density:
911 kg/m³
Temp.:
20 °C
Remarks on result:
other: final result (mean value of two independent determinations) - relative density at 20 °C in reference with water at 4 °C

Results of two determinations are reported in the following table:

 
     Measurement           Determination
 2
  Temperature (°C)  20.0 20.0 
   Mass of the empty pycnometer (g)  31.44269 31.44269
   Mass of the pycnometer filled with ultrapure water (g)  81.48460 81.48460
  Mass of the pycnometer filled with the test item (g)  77.11554 77.10330
  Density of the test item (kg/m3) 911.2 910.9 
  Mean Density (kg/m3)     911.0

The two determinations are within the validity criteria of the method: (less than 1% of difference).

No additional determination was performed.

Conclusions:
The relative density at 20°C of NERYL ACETATE is 0.911.
Executive summary:

A study was performed to determine the density of the test item NERYL ACETATE. The method followed was designed to be compliant with the OECD Guideline for Testing of Chemicals No.109, ''Density of Liquids and Solids'' and the Method A.3 of Commission Regulation No. 440/2008, ''Relative Density''.

In this method, the density is determined at a specific temperature using a pycnometer.

Density is calculated from the difference in weight between the full and the empty pycnometer and its volume. The pycnometer volume is determined by carrying out the experiment at the selected temperature with the quantity of ultrapure water required to fill the pycnometer.

The following results were obtained:

 
 Trial  Density (kg/m3) at 20.0 +/-0.1°C
 1 911.2
 2  910.9
 Mean  911.0

These values respect validity criteria (less than 1% of difference). Moreover, the bath used to maintain the pycnometer at 20°C did not vary by more than 0.1°C from 20°C.

The density of the test item was determined to be 911.0 kg/m3 at 20.0 +/-0.1°C (mean value of two independant determinations).

The relative density of the test item was determined to be D204 = 0.911

Description of key information

The relative density of neryl acetate at 20 °C is 0.911 ± 0.001.

Key value for chemical safety assessment

Relative density at 20C:
0.911

Additional information

The relative density of neryl acetate at 20 °C was determined in a study performed according to OECD guideline 109 and EU method A3 using an oscillating densimeter. Therefore, a reliability of 1 is assigned and the result of this key study is proposed as the end point value.