Registration Dossier
Registration Dossier
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EC number: 442-480-8 | CAS number: 182893-11-4
Endpoint summary
Administrative data
Description of key information
MIPKP is mixture of at least two substances i.e. dimethylphthalate and methyl isopropyl ketone peroxide.
Methyl isopropyl ketone peroxide dissolved in water is rapidly converted into methyl isopropyl ketone (2-methyl-3-butanone) at 20°C and neutral pH (environmental conditions). This decomposition product is volatile.
Dimethylphthalate and the decomposition product of the peroxide are both classified as readily biodegradable. Dimethylphthalate was classified as readily biodegradable based on biodegradation percentages of 93 to 98 (EPA 2010). Methyl isopropyl ketone was degraded 85% in the Closed Bottle test (OECD 301D, a test suitable for volatile substance (Eastman, 2011).
MIPKP should be classified as readily biodegradable because of biodegradation results in excess of 60% in three replicates (no or limited loss of methyl isopropyl ketone) and the ready biodegradability of dimethylphthalate and methyl isopropyl ketone.
Additional information
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