Registration Dossier
Registration Dossier
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EC number: 205-487-5 | CAS number: 141-52-6
Endpoint summary
Administrative data
Description of key information
Additional information
Since sodium ethanolate hydrolyses rapidly in water and
soil moisture to ethanol and sodium hydroxyde, an assessment approach
may be performed by evaluating the products of hydrolysis. SIDS dossiers
are availabe for both degradation products.
OECD (2002). SIDS Sodium hydroxide CAS-No. 1310-73-2, ECB (2006). European Union Risk Assessment Report, Sodium hydroxide, CAS No: 1310-73-2, EINECS No: 215-85-5, Draft of July 2006.
For sodium hydroxide no data are available since the substance completely dissociates in water and effects are related to a shift in pH values only.
OECD (2005) SIDS Ethanol CAS-No. 64-17-5. Soil represents no target compartment due the rapid dissociation of the test substance. Both dissociation products exhibit little adsorption potential. In addition, ethanol is readily biodegradable. Therefore toxicity testing to soil organisms is not required. However, there are two studies on terrestrial toxicity for ethanol.For the organic hydrolysis product a toxicity study with Eisenia fetida is available (Roberts Dorough, 1984). In this study an EC50 of 100 - 1000 µg/cm2 (nominal) after 48 hours of exposure was determined.
For ethanol a toxicity study with Allium cepa is available (Fiskesjo, 1985). In this study an EC50 of 7890 - 15780 mg/L after 6 days of exposure was determined.
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