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EC number: 639-566-4
CAS number: 165184-98-5
Photodegradation in water and hydrolysis have both been observed in preparatory work performed prior to undertaking an algae study (see 6.1.5) however half-lives in water cannot be accurately quantified from this data for use in risk assessment and is not a standard requirement under REACH
During a stability test performed as part of the preparatory work for
the algae growth inhibition study (see 6.1.5), sealed glass flasks
containing nominal fortification concentrations of 0.32 mg/L test
substance (previously dissolved in methanol) were stored at ambient
temperature in light and dark conditions for approximately 72 hours. For
flasks exposed to light conditions, photodegradation of the substance in
water was observed corresponding to a 10 fold reduction in concentration
under 24 hour per day light conditions for a period of 72 hours.
In samples maintained in the dark under otherwise identical conditions,
64% of the initial test substance concentration was recovered.
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