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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:
Experimental date: 04 April 2019
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Remarks:
The study was conducted according to an internationally recognised method, and under GLP. The substance is adequately identified, but some data on composit ion is missing. Therefore validation applies with restrictions.
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Version / remarks:
2012
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Version / remarks:
(2008)
GLP compliance:
yes (incl. QA statement)
Remarks:
issued 01/08/2019
Type of method:
pycnometer method
Specific details on test material used for the study:
Physical State/Appearance: Pale yellow extremely viscous liquid
Storage Conditions: Room temperature (15 to 25°C), dark, in a clear glass bottle within a black bag
Dynamic viscosity of test material:
No data. But ue to the extremely viscous nature of the test item, a modification of the procedure normally used for solid test items was employed.
Key result
Type:
relative density
Density:
1.01 other: relative density is dimensionless
Temp.:
20 °C

Determination 1: 0.99

Determination 2: 1.02

The duplicate determinations fell within the estimated accuracy of the method (± 0.05 units).

Therefore the average value is retained.

Conclusions:
The substance is as dense as water.
Executive summary:

The density of the substance was determined according to OECD 109/EU A3 guideline, using the pycnometer method, with displacement liquid due to high viscosity of the test item.

Two replicates were performed; results were consistent, so the average value was retained.

The relative density D20/4 is 1.01.

Description of key information

The substance is as dense as water.

Key value for chemical safety assessment

Relative density at 20C:
1.01

Additional information

A reliable experimental study, conducted according to a recognized OECD/EC method, is available.

Despite minor restrictions due to incomplete test item identification, it is considered as a key study, and the result is retained as key data.