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Environmental fate & pathways

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Description of key information

Half-life period of Reactive Orange 136 at pH 4 and pH 7 were 12233.9 h (about 1.4 years) and 84.8 h (about 3.5 days) at 25 °C respectively.

Additional information

Hydrolysis as a function of pH was performed with FAT 45176/A under GLP compliance according to OECD 111and EU C.7 guideline. Based on the study results, test substance at pH 4 has a half-life period of 12233.9 h (about 1.4 years) at 25 °C, at pH 7 has a half-life period of 84.8 h (about 3.5 days) at 25 °C, and is unstable at pH 9 with a half-life period of shorter than one day at 25 °C.