Sodium ethoxide Chemical Properties
- Melting point:
- 260 °C
- Boiling point:
- 0.868 g/mL at 25 °C
- vapor density
- 1.6 (vs air)
- vapor pressure
- <0.1 mm Hg ( 20 °C)
- refractive index
- Flash point:
- 48 °F
- storage temp.
- Store at R.T.
- Soluble in ethanol and methanol.
- Yellow to brown
- Specific Gravity
- 13 (5g/l, H2O, 20℃)
- Water Solubility
- Moisture Sensitive
- Hydrolytic Sensitivity
- 7: reacts slowly with moisture/water
- Reacts violently with acids, water. Incompatible with chlorinated solvents, moisture. Absorbs carbon dioxide from the air. Highly flammable.
- CAS DataBase Reference
- 141-52-6(CAS DataBase Reference)
- EPA Substance Registry System
- Ethanol, sodium salt (141-52-6)
- Hazard Codes
- Risk Statements
- Safety Statements
- UN 3274 3/PG 2
- WGK Germany
- Autoignition Temperature
- 30 - 50 °C
- HS Code
- Hazardous Substances Data
- 141-52-6(Hazardous Substances Data)
- LD50 orally in Rabbit: 598 mg/kg
Sodium ethoxide Usage And Synthesis
White powder, sometimes having brownish tinge; readily hydrolyzes to alcohol and sodium hydroxide.
White or yellowish powder; hygroscopic; darkens and decomposes on exposure to air; decomposes in water forming sodium hydroxide and ethanol; dissolves in absolute ethanol.
Sodium ethoxide is used in organic synthesis for condensation reactions. It also is a catalyst in many organic reactions.
Sodium ethoxide is prepared by reacting sodium with absolute ethanol:
2Na + 2C2H5OH → 2C2H5ONa + H2
Sodium in small quantities is added to absolute alcohol at 10°C. The temperature is raised to warming (to about 38°C). The mixture is cooled again and sodium and absolute alcohol are added gradually followed by careful warming. The process is repeated to obtain a sufficient yield of the p
ChEBI: An organic monosodium salt that has ethoxide as the counterion.
As for caustic soda, ethanol. Sodium hydroxide is formed when sodium ethylate is exposed to moisture.
It is a hygroscopic powder which should be stored under N2 in a cool place. A likely impurity is EtOH which can be removed by warming at 60-80o under high vacuum. It is hydrolysed by H2O to yield NaOH and EtOH. Other impurities, if kept in air for long periods are NaOH and Na2CO3. In this case the powder cannot be used if these impurities affect the reactivity, and a fresh sample should be acquired [IR: Seubold J Org Chem 21 156 1956]. [Beilstein 1 H 311, 1 IV 1289.]
Sodium ethoxide Preparation Products And Raw materials
- Magnesium ethoxide
- Glycolic acid
- Sodium glycolate
- Potassium ethylate
- NIOBIUM ETHOXIDE
- LITHIUM ETHOXIDE
- Ethylenediaminetetraacetic acid disodium salt
- Mordant Blue 29
- 4-CHLOROPHTHALIC ACID MONOSODIUM SALT
- 3-METHYL-2-OXOPENTANOIC ACID SODIUM SALT
- Sodium rhodizonate
- MESOXALIC ACID MONOHYDRATE DISODIUM SALT
- 3',3'',5',5''-TETRAIODOPHENOLPHTHALEIN, SODIUM SALT
- Sodium ethoxide
- Sodium chloride
- Sodium citrate
- Sodium benzoate
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