Sodium methanolate

Sodium methanolate is a chemical compound with the formula CH3NaO and CAS number 124-41-4. It is the sodium salt of methanol, also known as sodium methoxide. With a molecular weight of 54.024 g/mol, this substance is classified as a self-heating material and skin corrosive compound. It appears as a white to off-white powder or crystalline solid and is highly reactive with water and moisture.

Sodium methanolate is a white to off-white crystalline powder or solid at room temperature. It is highly hygroscopic and readily absorbs moisture from air. The compound is highly soluble in methanol and reacts vigorously with water, producing methanol and sodium hydroxide. It has self-heating properties and can ignite spontaneously when exposed to air or moisture, making it thermally unstable under normal atmospheric conditions.

Sodium methanolate is primarily used as a strong base and nucleophile in organic synthesis reactions. It serves as a catalyst in transesterification processes, particularly in biodiesel production from vegetable oils. The compound is also utilized in pharmaceutical manufacturing, polymer synthesis, and as a condensation agent in various chemical processes. Additionally, it finds applications in the production of other sodium salts and as a deprotonating agent in organic chemistry.

Sodium methanolate must be handled with appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing due to its corrosive nature. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation. Avoid contact with water, moisture, and incompatible materials. Use non-sparking tools and ensure proper grounding to prevent static electricity buildup, as the substance has self-heating properties and fire hazards.

Sodium methanolate should be stored in tightly sealed, moisture-proof containers in a cool, dry, well-ventilated area away from heat sources and ignition sources. Keep containers away from water, acids, and oxidizing agents to prevent dangerous reactions. Storage areas should be equipped with appropriate fire suppression systems and maintained at stable temperatures. Containers must be properly labeled and stored according to ADR Class 4.2 requirements for self-heating substances.

Immediate medical attention is required for any contact with sodium methanolate due to its corrosive properties. For skin contact, immediately remove contaminated clothing and rinse the affected area with plenty of water for at least 15 minutes. In case of eye contact, flush thoroughly with water and seek immediate medical care. If inhaled, move the person to fresh air and provide respiratory support if needed. Never induce vomiting if ingested.

Sodium methanolate disposal must comply with local and national hazardous waste regulations as it is classified as dangerous goods. The substance should be neutralized carefully by qualified personnel before disposal, typically by controlled reaction with appropriate solvents under controlled conditions. Contact licensed hazardous waste disposal companies for proper treatment and disposal. Never dispose of this material in regular waste streams or pour down drains due to its reactive and corrosive nature.

Sodium methanolate is classified under ADR Class 4.2 (substances liable to spontaneous combustion) with Packing Group II, indicating moderate danger level. Transportation requires appropriate packaging, labeling with GHS02 and GHS05 pictogrammes, and proper documentation. Vehicles must comply with ADR regulations for Class 4.2 materials, including appropriate fire suppression equipment. Drivers need ADR certification, and transport should avoid extreme temperatures and moisture exposure during transit.

Sodium methanolate is subject to various chemical safety regulations including REACH registration requirements in Europe and CLP classification as Self-heating Category 1 and Skin Corrosive 1B. It requires safety data sheets and proper hazard communication with danger signal word and specific pictogrammes. The substance is not listed as SVHC (Substance of Very High Concern), but strict handling, storage, and transport regulations apply due to its hazardous classification and reactive properties.

Sodium methanolate is available through OYSI, a European distributor of technical chemicals specializing in quality chemical products. OYSI provides reliable supply chains across Europe with proper documentation, safety data sheets, and regulatory compliance. As a specialized chemical distributor, OYSI ensures product quality, appropriate packaging, and technical support for industrial customers requiring sodium methanolate for their manufacturing processes and chemical applications throughout European markets.