Sodium methanolate

Sodium methanolate is an organometallic compound with the chemical formula CH3NaO and CAS number 124-41-4. It is the sodium salt of methanol, characterized by its highly reactive and corrosive nature. With a molecular weight of 54.024 g/mol, this white crystalline solid is classified as a self-heating substance and skin corrosive material, requiring careful handling due to its dangerous properties and potential for spontaneous ignition.

Sodium methanolate is a white crystalline solid that is highly hygroscopic and readily absorbs moisture from air. It is highly soluble in methanol and other polar solvents but reacts violently with water, producing sodium hydroxide and methanol. The compound has strong basic properties and is thermally unstable, capable of self-heating. It decomposes when exposed to moisture or heat, making proper storage conditions essential for maintaining its stability.

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 employed in pharmaceutical manufacturing, as a condensing agent in organic chemistry, and in the production of various chemical intermediates. Its strong basic properties make it valuable for deprotonation reactions and ester formation processes.

Sodium methanolate requires strict safety measures including wearing chemical-resistant gloves, safety goggles, and protective clothing due to its corrosive nature. Work must be conducted in well-ventilated areas or under fume hoods to avoid inhalation exposure. The compound should be handled with dry tools in moisture-free environments to prevent violent reactions. Emergency eyewash stations and safety showers should be readily accessible when working with this dangerous substance.

Sodium methanolate must be stored in tightly sealed, moisture-proof containers in cool, dry conditions away from heat sources and ignition points. The storage area should be well-ventilated and equipped with appropriate fire suppression systems due to its self-heating properties. It should be kept separate from acids, water, and oxidizing agents to prevent dangerous reactions. Original packaging should remain unopened until use to maintain product integrity and safety.

Sodium methanolate contact requires immediate action due to its corrosive properties. For skin contact, immediately remove contaminated clothing and flush the affected area with copious amounts of water for at least 15 minutes. In case of eye contact, rinse continuously with water and seek immediate medical attention. If inhaled, move the person to fresh air and provide oxygen if breathing is difficult. Seek medical attention promptly for all exposure incidents.

Sodium methanolate disposal must comply with local and national hazardous waste regulations due to its corrosive and reactive properties. The compound should be neutralized carefully by qualified personnel using appropriate methods before disposal. Small quantities can be slowly added to large volumes of methanol under controlled conditions, followed by proper waste treatment. Never dispose of this substance in regular waste streams or pour it down drains.

Sodium methanolate is classified under ADR Class 4.2 (substances liable to spontaneous combustion) with Packing Group II, indicating its significant transport hazards. It requires specialized packaging that prevents moisture ingress and provides adequate protection against physical damage. Transport vehicles must carry appropriate emergency equipment and documentation. Only qualified personnel should handle transportation, following strict protocols for self-heating substances to ensure safety during transit.

Sodium methanolate is regulated under multiple frameworks including CLP regulation due to its classification as Self-heating Category 1 and Skin Corrosive 1B. It requires safety data sheets compliant with REACH regulation and proper hazard labeling with GHS pictograms GHS02 and GHS05. The substance is not currently listed as an SVHC under REACH, but handlers must comply with occupational exposure limits and workplace safety regulations in their respective jurisdictions.

Sodium methanolate is available through OYSI, a European distributor specializing in technical chemical products. As a professional chemical supplier, OYSI can provide this regulated substance to qualified industrial customers with proper documentation and safety requirements. Given the hazardous nature of sodium methanolate, purchases typically require proof of technical competence and appropriate handling facilities. Contact OYSI directly to discuss availability, specifications, and regulatory compliance requirements for your specific application.