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EC number: 202-936-7
CAS number: 101-37-1
Triallyl cyanurate has in the neutral and acid pH range (pH=5 to 7) only low potential for hydrolytical degradation. Only in the alkaline pH region, a limited tendency for hydrolysis could be detected. Thereby a successive ether cleavage of the side chains could be observed with cyanuric acid as end product.
The potential of triallyl
cyanurate for hydrolysis was tested according to OECD Guideline
111 (2004) and in compliance with GLP. Hydrolysis depends significantly
on pH. At pH 4 and 7, the substance did not degrade in a preliminary
study. The Hydrolysis rate constant K25 °C calculated using the
Arrhenius equation was 0.000247 h-1 at pH 9.
Further studies demonstrate that hydrolysis occurred
marginally indicated by recovery rates exceeding 50 % at pH up to 10.4.
Degradation increased significantly at pH 12 and only 8.7 % of the
initial concentration was measured after 10.3 h.
hydrolysis of triallyl
in water depending on pH was additionally calculated for a 24 h test
period. The quantitative measurement of TAC in aqueous solution
indicates no hydrolysis at pH 8.8, 7.1 or 1.2. TAC is stable and no
metabolites occur. It can be concluded that hydrolysis of TAC is
unimportant for the aquatic fate of this compound at the normal pH range
of natural water.
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