Sodium ethoxide
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| Sodium ethoxide | |
|---|---|
| Names: | sodium ethoxide sodium ethylate sodium ethanolate sodium alcoholate |
| Formula: | C2H5ONa (anhydrous) C2H5ONa · 2C2H5OH (diethylate) |
| Molar mass: | 68.051 g/mol (anhydrous) 160.188 g/mol (diethylate) |
| Density: | 0.868 g/cm3 (anhydrous) |
| Crystal system: | tetragonal (anhydrous) a=4.41084 Å, b=4.41084 Å, c=9.06779 Åα=90°, β=90°, γ=90° monoclinic (diethylate) a=11.622 Å, b=5.1926 Å, c=17.682 Åα=90°, β=104.03°, γ=90° |
| Shapes: |
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| Color: | colorless |
| Melting point: | 200 °C473.15 K <br />392 °F <br />851.67 °R <br /> (diethylate) 260 °C533.15 K <br />500 °F <br />959.67 °R <br /> (anhydrous) |
| Stability: | stable (diethylate) |
| Hardness: | fragile |
Description
Organic compound, alkoxide of alkaline metal sodium and ethanol. From water solutions crystallizes as diethylate.
Chemical equation:
For preparation of
100.00g of sodium ethoxide diethylate а 14.35g of sodium and 28.76g of ethanol is required.
Reaction speed is very low. It took 3 months at 50°C to get crystals on image below.
Notes
Reacts with water, producing sodium hydroxide and ethanol.
Highly soluble in methanol.
Gallery
Video
Sources
- R.A.Kiper Properties of compounds. Handbook
- M. Beske, L. Tapmeyer, M. U. Schmidt, Crystal structure of sodium ethoxide (C2H5ONa), unravelled after 180 years
- M. Beske, S. Cronje, M. U. Schmidta, L. Tapmeyera, Disordered sodium alkoxides from powder data: crystal structures of sodium ethoxide, propoxide, butoxide and pentoxide, and some of their solvates
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