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Environmental fate & pathways

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Reactive Brown 49 is not biodegradable, however, abiotic degradation takes place. At 25 °C, Reactive Brown 49 is stable at pH 4 with a half-life period greater than one year; while at pH 7 it has a half-life period of 64.3 h (about 2.7 days). It is unstable at pH 9 with half-life period shorter than one day.

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