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EC number: 203-733-6
CAS number: 110-05-4
3 and Chronic 3
existing acute data are as follows:
h EC50 algae = 36 mg/L; 48 h EC50 Daphnia = 73.1 mg/L, 96 hr Acute fish
= 171 mg/L (algae used as worst case).
all effect values are above 1 mg/L,there is no acute classification
for this substance.
EC50 value is between 10 and 100 mg/L, Acute 3 is applicable in this
butyl peroxide is not readily biodegradable, and the measured log
Kow is 3.2. The chronic data available are as follows:
h ErC10 algae, 15 mg/L; 21 d NOEC Daphnia = 7.2 mg/L.
chronic data for less than 3 trophic levels are available the
classification is assessed using both the existing chronic and acute
data, and the most stringent outcome is chosen.
on acute data (72 h
EC50 algae = 36 mg/L): Chronic 3
on chronic data: (72 h ErC10 algae, 7.2 mg/L):
and GHS: Most
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