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EC number: 232-482-5
CAS number: 8050-31-5
The log partition coefficients for the rosin ester substances range from 2.44 - >6.5.The log partition coefficient of Resin acids and rosin acids, esters with glycerol is 3.97 at 20 - 25°C and pH 6.1 - 6.6.
A study following the EU method A.8
(shake-flask method) was used as the key study (Chilworth
Technology, 2010a). The following partition coefficient result was
obtained: Log P = 3.97 at 20°C and pH 6.1 – 6.6.
An additional supporting study is
available for Resin acids and rosin acids, esters with glycerol,
conducted according to OECD 117 HPLC method (Water Quality
Institute, 1993a). This study showed no detectable peak
corresponding to log Kow > 1.5, whether at pH2 or pH 7.5. It
should be noted that the substance has extremely low water
solubility (< LOQ of 0.43 mg/L); therefore, it will tend to be
"pushed out" of the water phase.
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