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EC number: 266-040-8
CAS number: 65997-04-8
The partition coefficients for members of the category Rosin adducts and rosin adduct salts range from 1.5 to >6.5 The partition coefficient of Rosin, fumarated is 2.8 at pH 3.93 – 4.47. An additional study determined a log Kow of 2.7 – 3.6 at pH 7.5 and 4.4 – 7 at pH 2, both measured at 35°C
GLP-compliant study. following EU method A.8 (shake-flask method) was
provided for Rosin, fumarated (Chilworth Technology, 2010a). The partition
coefficient was reported to be 2.8
at pH 3.93 – 4.47
GLP-compliant study that followed OECD
Guideline 117 (HPLC method) was provided for Rosin, fumarated (Water
Quality Institute, 1992). The log partition coefficient of Rosin,
fumarated was found to be in the range of 4.4 to 7.0 at pH 2.0.
In addition, a
calculated value is provided for Rosin, fumarated (Marlin Consultancy,
2010). Where test data are available this should be used instead of
calculated data, therefore the tested values are considered as key for
The wide range of
partition coefficient values for substances in this category is due to
the chemical structures of the substances, as they are composed of
ionisable organic acids. The substances in this category are UVCB
mixtures and therefore can exhibit more than one peak and log Kow value.
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