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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:
From April 02, 2018 to April 23, 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
Version / remarks:
OCSPP 830.7300
GLP compliance:
yes
Type of method:
other: Tube method the density of a test article is defined as the mass of a material in a graduated polypropylene tube divided by the volume of the graduated polypropylene tube (g/mL).
Key result
Type:
density
Density:
0.943 g/cm³
Temp.:
40.5 °C
Key result
Type:
relative density
Density:
0.943 other: Dimensionless
Temp.:
40.5 °C

The test substance density determination was performed in triplicate from representative subsamples using the polypropylene tube method. The tube was first calibrated using DIW and the resulting calibration curve used to determine the corrected volume of the test substance to be used in the density calculation.

The test substance was first warmed at~40°C to a more liquid state and the density test was performed on the liquid material.

The mean density determined was 0.943 ± 0.01 g/mL at 40.5 °C;results are presented in the Table. The %RSD acceptance criterion (%RSD < 5.0%) for the triplicate determinations was met.

Table                Determination of Density @ 40.5°C

Calibration:

Replicate

W0

W8

W10

W12

1

6.2283

13.9213

15.9782

18.0861

2

6.2126

13.9426

16.0996

18.0141

3

6.2135

13.8008

15.9595

18.0225

Replicate

W0

W8 - W0

W10 - W0

W12 - W0

1

6.2283

7.6930

9.7499

11.8578

2

6.2126

7.7300

9.8870

11.8015

3

6.2135

7.5873

9.7460

11.8090

 

 

 

 

 

Vn

Rep. 1

Rep. 2

Rep. 3

 

8

7.693

7.73

7.5873

 

10

9.7499

9.887

9.746

 

12

11.8578

11.8015

11.809

 

slope

1.041

1.018

1.055

 

intercept

-0.645

-0.373

-0.840

 

rsq

1.000

0.999

1.000

 

 

Test substance:

Replicate

Weight (W1) (g)

Weight (W2) (g)

Vn (mL)

V (mL)

Density (g/mL)

1

6.2237

16.6151

11.10

10.91

0.952

2

6.2106

16.5046

11.20

11.03

0.933

3

6.2099

16.3757

11.00

10.77

0.944

 

 

 

 

Mean

0.943

 

 

 

 

SD

0.01

 

 

 

 

%RSD

1.0

 

Conclusions:
Under the study conditions, the relative density of the test substance was determined to be 0.943 at 40.5°C.
Executive summary:

A study was conducted to determine the density of the test substance using tube method, according to the OECD Guideline 109, in compliance with GLP. Under the study conditions, the relative density of the test substance was determined to be 0.943 at 40.5°C (Meghan, 2018)

Description of key information

The density was determined using the tube method according to OECD Guideline 109 (Meghan, 2018).

Key value for chemical safety assessment

Additional information

0.943 at 40.5°C.

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