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Density

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Reference
Endpoint:
density, other
Remarks:
absolute density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
27 Jul 1999
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
GLP compliance:
no
Type of method:
other: graduated cylinder
Key result
Type:
other: absolute density
Density:
1.65 g/cm³
Temp.:
40 °C
Conclusions:
A density of 1.65 g/cm3 at 40 °C was observed for MeFBSA (liquid form).
Executive summary:

The density of MeFBSA was determined by pouring melted substance into a graduated cylinder and measuring weight and volume at that temperature. The study was performed comparable to OECD guideline 109 but with limited detail on the study. The graduated cylinder, while certified, is of relatively limited accuracy for volume measurements as compared to a pycnometer. Therefore the study is considered reliable with restrictions.

Description of key information

A density of 1.65 g/cm3 at 40 °C was observed for MeFBSA (liquid form).

Key value for chemical safety assessment

Additional information

In the key study, the density of MeFBSA was determined by pouring melted substance into a graduated cylinder and measuring weight and volume at that temperature. The study was performed comparable to OECD guideline 109 but with limited detail on the study. The graduated cylinder, while certified, is of relatively limited accuracy for volume measurements as compared to a pycnometer. Therefore the study is considered reliable with restrictions. In the supporting study, the molten substance was similarly poured into a graduated cylinder but allowed to solidify overnight. Phase changes are often accompanied by a change in volume, but no information was provided on how the top of the material was kept level and flat during cooling and solidification in the graduated cylinder. The melt density is considered more accurate and is the preferred value.