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Diss Factsheets

Physical & Chemical properties

Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
6th February - 15th May 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
pycnometer method
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: SOAP005-2
- Expiration date of the lot/batch: 15 October 2022

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Ambient, stored under nitrogen in a desiccator

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing: Following receipt of the test item, it was found that the material readily absorbed moisture in the parent container. Consequently, on advice from the Sponsor, a sub-sample was dried overnight at 100°C and then stored in a desiccator under a headspace of nitrogen.
Type:
relative density
Density:
1.11 other: dimensionless
Temp.:
20 °C

Parameter

Replicate 1

Replicate 2

 

 

 

w1

24.82342

24.60318

w2

49.40031

49.68442

w3

44.76528

44.95669

w4

27.83353

27.66426

w5

45.59235

45.78903

 

 

 

W1

24.57689

25.08124

W2

19.94186

20.35351

W3

3.01011

3.06108

W4

17.75882

18.12477

W5

2.18304

2.22874

 

 

 

0.8098

0.8099

 

 

 

Mean=

0.8098

 

 

 

Vs

2.696

2.752

 

 

 

DT4

1.12

1.11

 

 

 

Mean

1.11

 

 

 
Conclusions:
The relative density of the test item was determined to be 1.11.
Executive summary:

The density study was conducted according to OECD 109 guideline (Dunning 2018). The density of the test item relative to that of water at 4°C was determined using the pycnometer method. The test was conducted in duplicate using separate pycnometers.

The relative density of the test item was determined to be 1.11.

The study is GLP-compliant and was conducted according to the standard guideline, therefore is considered reliable without restrictions and suitable as a key study for this endpoint.

Description of key information

The relative density of the test item was determined to be 1.11 at 20°C.

Key value for chemical safety assessment

Relative density at 20C:
1.11

Additional information

The density study was conducted according to OECD TG 109 guideline (Dunning 2018).The density of the test item relative to that of water at 4°C was determined using the pycnometer method. The relative density of the test item was determined to be 1.11 at 20°C.

The study is GLP-compliant and was conducted according to the standard guideline, therefore is considered reliable without restrictions and suitable as a key study for this endpoint.