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Density

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Reference
Endpoint:
density, other
Type of information:
experimental study
Adequacy of study:
key study
Study period:
03 January - 18 March 2022
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)
Version / remarks:
2012
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 (i.e. manufacturer or supplier) and lot/batch number of test material: Manufacturer, UA21412002
- Purity, including information on contaminants, isomers, etc.: Content: 75% 3-(N,N-Dimethyl)propyl-urea and 25% Polyethylenglycol

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Store container tightly closed at a well-ventilated place. Store in the original container. Do not store with acids.
Key result
Type:
density
Density:
1.058 g/cm³
Temp.:
20 °C

Determination of the Reference Item


The reference study (study ID 72103IRS / CPD70096) was carried out with n-heptane at 20 °C. The density of the reference item was determined to be 0.6838 g/cm3, corresponding to a relative density of 0.6839


Temperature Control


During the equilibration time the temperature was kept constant at 20.0 +- 0.1 °C, for temperatures at moments of weighing (TP) see Table 1 in Overall Remarks attachement


Validity Criteria


The temperatures at moments of weighing must be kept constant within 20.0 +- 0.1 °C (actual temperature in range of 19.98 to 20.05 °C). The relative standard deviation (RSD) of three replicate measurements should be ≤ 2% (actual value 0.04%).

Conclusions:
The density of PU-2021-971 at 20 °C was determined to be 1.0576 g/cm3 corresponding to
1057.6 kg/m3.
The relative density liquid of the test item was calculated to be 1.0576.

Description of key information

Key value for chemical safety assessment

Relative density at 20C:
1.056

Additional information