Registration Dossier
Registration Dossier
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EC number: 223-453-8 | CAS number: 3900-45-6
Endpoint summary
Administrative data
Description of key information
Additional information
Biodegradation:
Biodegradation in Water: Screening test:
Half life period of 1-(6-methoxy-2-naphthyl)ethan-1-on in water was estimated to be 38 days indicating that 1-(6-methoxy-2-naphthyl)ethan-1-on is readily biodegradable in water since the half life is less than the threshold of 40 days (to qualify the chemical as persistent)
Media |
Half-Life |
Percent in |
Water |
38 |
17 % |
Biodegradation in Water and Sediment:
Half life period of 1-(6-methoxy-2-naphthyl)ethan-1-on in water was observed to be 38 days while in sediment it is 340 days. Based on these half life values it is concluded that 1-(6-methoxy-2-naphthyl)ethan-1-on is readily biodegradable in water but not readily biodegradable in sediment. However, since there is no diffusion of the substance in the sediment as evident from the reported data (0% in sediment) and hence persistence in the sediment compartment is not likely to be critical.
Supporting study also indicates the half life in water to be 900 hrs (37.5 days) while in sediment it is 8100 hrs (337.5 days).
Media |
Half-Life |
Percent in |
Water |
38 |
17 % |
Sediment |
340 |
0 % |
Media |
Half life (hrs) |
% in medium |
Emissions (%) (hr) (kg/hr) |
Water |
900 |
19.6 |
1000 |
Sediment |
8100 |
0.386 |
0 |
Biodegradation in Soil:
Half life period of 1-(6-methoxy-2-naphthyl)ethan-1-on in Soil was observed to be 1800 hrs (75 days) which does not exceeds the threshold criteria 120 days. Based on these half life values it is concluded that 1-(6-methoxy-2-naphthyl)ethan-1-on is readily biodegradable (not persistent) in Soil.
Media |
Half life (Days) |
% in medium |
Soil |
75 |
83 |
Media |
Half life (hrs) |
% in medium |
Emissions (kg/hr) |
Soil |
1800 |
79.7 |
1000 |
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