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EC number: 266-040-8
CAS number: 65997-04-8
No boiling point was observed for most of the substances in the category Rosin adducts and rosin adduct salts up to the temperatures reported . Boiling points for those substances in the category where boiling was determined above 300°C. No decomposition was observed up to 300°C
Resins may discolour to dark brown when heated above 150°C. This phenomenon is not the consequence of mass decomposition of the substance. Rather, hydroperoxydes (oxidized resin acids) develop during ambient storage upon exposure to air and the heating of those hydroperoxides causes their decomposition: this forms high extinction coefficient chromophores (hydroperoxyde cleavage) in small concentrations.
Any heating to elevated temperatures should occur under inert gas conditions to prevent darkening of the product.
A GLP-compliant study, conducted according
to EU Method A.2 (Siwoloboff), was provided for Rosin, fumarated
(Chilworth Technology, 2010a).
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