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Send EmailSodium Methylate, Sodium Methanolate, Sodium Methoxide, Methoxy Sodium, 124-41-4
Sodium Methylate – Technical Overview
| Property | Value |
|---|---|
| Chemical Name | Sodium Methylate / Sodium Methoxide |
| Chemical Formula | CH₃ONa (also written as C₁H₃NaO) |
| CAS Number | 124-41-4 |
| EC Number | 204-699-5 |
| Molecular Weight | 54.02 g/mol |
| Appearance | White powder or 30% methanol solution |
| Solubility | Soluble in methanol and ethanol; reacts with water |
Production Process
Sodium methylate is produced via the reaction of metallic sodium with anhydrous methanol:
2 Na+2 CH3OH→2 CH3ONa+H22 \, \text{Na} + 2 \, \text{CH}_3\text{OH} \rightarrow 2 \, \text{CH}_3\text{ONa} + \text{H}_2
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Highly exothermic reaction
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Requires inert atmosphere (e.g., nitrogen)
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Generates flammable hydrogen gas
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Final product is typically a 30% solution in methanol or anhydrous solid
Industrial Applications
| Sector | Application Description |
|---|---|
| Biodiesel Production | Acts as a transesterification catalyst; most widely used globally in 30% solution form |
| Organic Synthesis | Used in methylation reactions and as a strong base in various syntheses |
| Pharmaceuticals | Intermediate in API synthesis and fine chemical production |
| Polymers & Plastics | Precursor for polyoxymethylene (POM) and other engineering plastics |
| Analytical Chemistry | Used as a titrant (e.g., 0.5 M in methanol) in laboratory settings |
Product Variants
| Form | Description & Use Case |
|---|---|
| 30% Methanol Solution | Most common; used in biodiesel and industrial synthesis |
| 25% / 21% Solutions | Lower concentrations for controlled reactivity |
| Anhydrous Solid (Powder) | High-purity, moisture-sensitive; used in dry organic synthesis |
| Titrant (0.5 M in MeOH) | Prepared for analytical titrations in labs |
Sectoral Compatibility Table
| Industry / Sector | Compatibility | Notes |
|---|---|---|
| Biodiesel | ✅ Essential | Global standard catalyst; improves yield and purification |
| Organic Chemistry | ✅ Compatible | Preferred base for methylation and condensation reactions |
| Pharmaceuticals | ✅ Compatible | Used in synthesis of active ingredients |
| Polymers / Plastics | ⚠️ Limited | Used in specific polymerization processes (e.g., POM) |
| Agrichemicals | ⚠️ Limited | May be used in synthesis of intermediates |
| Food / Cosmetics | ❌ Not Permitted | Toxic and flammable; prohibited by GMP and REACH |
Safety & Handling
| Hazard | Description |
|---|---|
| Flammable | Both solid and solution forms are flammable |
| Corrosive | Causes skin and eye irritation; reacts violently with water |
| Toxic by Inhalation | Vapors and dust may irritate respiratory system |
| Storage Requirements | Store in dry, inert atmosphere (e.g., nitrogen); avoid moisture and CO₂ |
Packaging & Storage
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Preferred Materials: Stainless steel, HDPE, PTFE
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Avoid: Glass (alkali attack), PVC (permeability), moisture exposure
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Shelf Life: Limited in open air due to hydrolysis
