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Density

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Description of key information

Relative density 1.57 at 20 ºC, EU Method A. 3, Younis 2012

Key value for chemical safety assessment

Relative density at 20C:
1.57

Additional information

The key study (Younis, 2012) was performed under GLP conditions and according to a standardised guideline. The study was assigned a reliability score of 1 in line with the principles for assessing data quality as defined by Klimisch (1997). Under the conditions of the study, the test material was determined to have a relative density of 1.57 at 20 ºC.

The supporting study (Butler, 2008) was performed using information from the read across substance, sodium 5-oxo-DL-prolinate, which is a racemic mixture of the D- and L- isomeric forms of the substance. Read-across is considered to be suitable based on the structural similarities between the read across substance (sodium 5-oxo-DL-prolinate) and the substance to be registered (sodium 5-oxo-L-prolinate), which is the L- isomer only. As such the difference in isomeric forms of the substance is unlikely to affect the physico-chemical properties. The study was conducted under GLP conditions and in accordance with standardised guidelines. The study was assigned a reliability score of 2 in line with the principles for assessing data quality as defined by Klimisch (1997). Under the conditions of the study, the test material was determined to have a relative density of 1.55 at 21.2 ± 0.5 °C, a value which is in good agreement with the result reported in the key study.