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EC number: 300-644-5
CAS number: 93951-21-4
The test substance is rapidly degraded in sediment and water
Reactive Black 5 as bis-ester, was applied to a sediment/water test
system at a final concentration of 1 mg/kg in the test system. The test
substance (TS) was very rapidly degraded. The DT50 of Reactive Black 5
was 2 days. After 3 to 6 days, only 10% of the applied TS could be
found. The two major identified metabolites were Reactive Black 5
bis-vinyl, which further degraded to Reactive Black 5 -OH. All
metabolites decreased at the end of the test period to levels around the
lower level of quantification. Consequently, an accumulation of
metabolites could be excluded. The majority of the metabolites of the TS
were deposited in form of non-extractable residues in sediment during
test phase. After about 1 month, mineralization of the metabolites
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