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Physical & Chemical properties

Density

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Description of key information

Experimental value of relative density at 20.9°C: 1.411 +/-0.05

Key value for chemical safety assessment

Relative density at 20C:
1.411

Additional information

The determination of the density was performed by stereopycnometer method according to EU Method A.3, OECD guideline 109 and GLP. No deviation from the guidelines was observed during the test.

The accuracy of the apparatus was assessed using a reference standard. The apparatus was considered acceptable for use according to the result obtained with the reference standard.

The relative density determined for the test substance is close to the value of an analogue substance. The analogue is "Reaction product of naphthalene, propan-2-ol, sulfonated and neutralized by caustic soda" having a relative density at 20°C of 1.525. The same method was used for the analogue substance and the test substance to determine this parameter . The slight difference between these two values can be explained by the process used to obtained the sample. In one case (for the test item), an aqueous commercial solution was dried to get a sample without water. In the other case, the analogue substance is marketed without water on a solid form. It was not necessary to dried a sample to remove water.