6 Things You Need to Know About Sodium Ethoxide

Sodium ethoxide is an organic compound with the chemical formula of C2H5ONa.

It is a white to yellowish hygroscopic powder. It can quickly decompose into sodium hydroxide and ethanol when meeting water, and can be dissolved in absolute ethanol without decomposition. Insoluble in benzene, it is mainly used as a strong alkaline catalyst, ethoxylator, and also for organic synthesis of medicine, pesticides, spices, etc.

1.Basic Information

Name:Sodium Ethoxide

Other Name:Sodiun Ethylate

Chemical formula: C2H5ONa

Molecular weight: 68.050


EINECS Login: 205-487-5

Melting point: 91 ℃

Boiling point: 260 ℃

Density: 0.868 g/cm ³

Appearance: white to yellowish hygroscopic powder

Flash point: 30 ℃

Security description: S8; S16; S26; S36/37/39; S43; S45

Hazard symbol: C

Hazard description: R11; R14; R34

2.Physical Property

Melting point: 91 ℃

Boiling point: 260 ℃

Flash point: 30 ℃

Density: 0.868g/cm3

Refractive index: 1.386 (20 ℃)

Appearance: white to yellowish hygroscopic powder

Solubility: soluble in absolute ethanol, insoluble in benzene

3.Chemical Property

Sodium ethoxide quickly decomposes into sodium hydroxide and ethanol when encountering water


It is mainly used as strong alkaline catalyst, ethoxylating agent, and organic synthesis of medicines, pesticides, spices, etc.

5.Security Information

S8:Keep container dry.

S16:Keep away from sources of ignition - No smoking.

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.

S43:In case of fire, use ... (if water increases the risk, add - never use water).

S45:In case of accident or if you feel unwell, seek medical advice immediately (show the lable where possible).

6.Risk Terminology

R11:Highly flammable.

R14:Reacts violently with water.

R34:Causes burns.