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Physical & Chemical properties

Boiling point

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Description of key information

Substances in the category Rosin, hydrogenated rosin and their salts have a boiling point >360°C.


Test was terminated at 171°C and no boiling point was observed under the test conditions.

At this temperature discoloration of the test sample was observed. This phenomenon is not the consequence of mass decomposition of the substance but occurs when the resin is not correctly stored and when heating the substance in a non-inert atmosphere (due to the formation of some chromophores).

Any heating to elevated temperatures should occur under inert gas conditions to prevent darkening of the product.



Key value for chemical safety assessment

Additional information

A GLP-compliant study, conducted according to OECD Guideline 103, was provided for Resin acids and Rosin acids, reaction products with formaldehyde, potassium salt (Harlan Laboratories Ltd., 2012a)