Registration Dossier
Registration Dossier
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EC number: 205-487-5 | CAS number: 141-52-6
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
The substance reacts violently with water.
Key value for chemical safety assessment
Additional information
In contact with water sodium and potassium ethanolate react very rapidly, quantitatively and exothermically to ethanol and the corresponding alkali hydroxides. X+ -O-C2H5 + H2O ---> C2H5OH + OH- + X+ (with X= Na+ or K+). Due to the very high pKa-value of ethanol of 15.9 at 25 °C, the equilibrium is on the side of the reaction products under environmentally relevant conditions. The reaction products, alkali metal ions and ethanol are stable in water while hydroxide ions can be subject to neutralization reactions in natural water bodies, depending on the buffer capacity of the carbonate/bicarbonate buffer systems.
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