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EC number: 202-936-7
CAS number: 101-37-1
0.328 g/L at 20 °C. The substance is moderately water soluble.
The water solubility of Triallyl cyanurate has been determined in a
GLP-study according to OECD guideline 105 and EU-method A.6. By using
the shake flask method, 100 mg test substance were diluted in 15 mL
water and shaken at for 72h, 120 h and 168 h. The samples were filtered
and analysed by HPLC. The substance is moderately soluble in water at
328 mg/L at 20°C (approx. pH 8).
The first test samples have been incubated for 24 h to 72 h and showed
the tendency of increasing concentration values. Therefore the test has
been repeated using longer equilibrations times. The three samples of
the second test showed no tendency of increasing concentrations after
120 h and 168 h shaking time and revealed a standard deviation of 7.1%.
The result is supported by a second GLP-conform study, in which a
solubility of the test substance in water of 308 mg/L (at pH 6.4, 72 h)
at 20 °C has been measured. This study has been initiated to determine
the logKow value of the test substance by separate measurement of the
solubility in water and octanol. The water solubility has been measured
according to OECD TG 105 as part of this study. Additionally the water
solubilty has been determined at different pH values and showed no
remarkably significant differences. The test substance is soluble at 333
mg/L, 247 mg/L and 284 mg/l at pH 4, pH 7 and pH 9, respectively.
Due to the fact, that the water solubilty has been measured several time
and resulted in consistent values, the water solubility of 328 mg/L for
Triallyl cyanurate is considered reliable.
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