1. Production Technology (Mature Process)

 Core Reaction:

2Na + 2CH₃OH → 2CH₃ONa + H₂↑

(Highly exothermic with hydrogen generation)

Production Process:

Reaction: Metallic sodium reacts with anhydrous methanol under inert gas (N₂/Ar) protection

Concentration: Excess methanol is distilled (often under vacuum) to obtain standard solutions (25-30%)

Drying: For powder form, deep vacuum drying removes residual methanol and moisture

2. Core Characteristics

A. Extreme Chemical Reactivity

Strong Basicity: pKa ~15.5 (non-nucleophilic base)

Strong Nucleophilicity: CH₃O⁻ attacks electrophilic centers

High Selectivity: Superior to NaOH in ester exchange and condensation reactions

B. Excellent Industrial Catalytic Efficiency

Primary catalyst for biodiesel production via transesterification

Higher activity and faster reaction rates compared to NaOH/KOH

C. Stringent Stability Requirements

Chemical Instability: Reacts violently with H₂O/CO₂ → requires strict moisture/air exclusion

Physical Instability: Powder hygroscopic; solutions flammable/volatile

D. High-Risk Profile

Flammable/Explosive: Low flash point solutions + hydrogen generation

Highly Corrosive: Severe burns to skin/mucous membranes

Toxic: Methanol toxicity (CNS damage, blindness potential)

E. Formulation Flexibility

Solutions (25-30% in methanol): Most common, easy handling

Powder: For anhydrous synthesis (requires specialized handling)

Main Applications

Pharmaceutical Industry: Used in the manufacture of pharmaceuticals such as Vitamin A1, Vitamin B1, Sulfamethoxypyridazine, Sulfadiazine, Trimethoprim, etc.

Biodiesel Industry: Used as a catalyst in biodiesel production.

Other Uses: Can be used as an edible catalyst and an analytical reagent.