Sodium boranuide

Sodium borohydride is an inorganic chemical compound with the molecular formula BH4Na and CAS number 16940-66-2. It serves as a powerful reducing agent widely used in chemical synthesis and industrial applications. With a molecular weight of 37.84 g/mol, this white crystalline solid is particularly valued for its ability to selectively reduce various organic and inorganic compounds under mild conditions.

Sodium borohydride appears as a white crystalline powder that is highly soluble in water and polar solvents like methanol and ethanol. It decomposes in acidic solutions, releasing hydrogen gas. The compound is hygroscopic, meaning it readily absorbs moisture from air. It has a density of approximately 1.07 g/cm³ and decomposes rather than melting when heated above 400°C.

Sodium borohydride serves primarily as a reducing agent in organic synthesis, pharmaceutical manufacturing, and chemical processing. It is extensively used for reducing aldehydes, ketones, and other carbonyl compounds to alcohols. Industrial applications include paper bleaching, metal recovery, wastewater treatment, and fuel cell technology. It also finds use in the production of fine chemicals, dyes, and as a hydrogen source in various applications.

Sodium borohydride requires careful handling with appropriate personal protective equipment including safety goggles, chemical-resistant gloves, and lab coats. Work in well-ventilated areas or under fume hoods to avoid hydrogen gas accumulation. Avoid contact with acids, moisture, and incompatible materials. Keep away from heat sources and ensure proper grounding to prevent static discharge. Always have emergency eyewash and safety shower facilities readily accessible.

Sodium borohydride must be stored in tightly sealed containers in a cool, dry place away from moisture, acids, and oxidizing agents. Keep containers in well-ventilated areas below 25°C with low humidity. Store separately from incompatible materials including acids, alcohols, and metal salts. Use original containers with proper labeling and ensure adequate spacing between containers to prevent cross-contamination and allow proper air circulation.

Sodium borohydride contact requires immediate action depending on exposure route. For skin contact, remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. If inhaled, move to fresh air immediately. For eye contact, flush with clean water for at least 15 minutes while holding eyelids open. If ingested, rinse mouth and seek immediate medical attention. Never induce vomiting and contact emergency services if symptoms persist.

Sodium borohydride disposal must comply with local environmental regulations and waste management guidelines. Small quantities can be carefully neutralized by gradual addition to water under controlled conditions, allowing hydrogen gas evolution in well-ventilated areas. Larger quantities require professional hazardous waste disposal services. Never dispose of in regular trash or pour down drains. Contact authorized waste disposal companies for proper collection and treatment.

Sodium borohydride is classified under ADR Class 4.3 (Substances which in contact with water emit flammable gases), Packing Group I, indicating high danger level. Transport requires appropriate UN-specification packaging, proper labeling with hazard diamonds, and documentation including transport documents. Vehicles must be properly equipped and drivers trained for dangerous goods transport. Ensure packages are kept dry and secure during transit.

Sodium borohydride falls under various chemical regulations including REACH registration requirements in Europe for commercial use. It is not classified as a Substance of Very High Concern (SVHC) under REACH. Users must comply with CLP regulation for classification and labeling, maintain safety data sheets, and follow workplace exposure limits. Industrial users may need specific permits and must implement appropriate risk management measures according to local chemical safety regulations.

Sodium borohydride is available through OYSI, a European distributor of specialty chemicals serving industrial and research customers across Europe. OYSI provides reliable supply chains, technical support, and regulatory compliance assistance for chemical procurement. Professional buyers can contact OYSI for quotations, product specifications, and delivery arrangements. Ensure proper documentation and compliance with local regulations when purchasing this regulated chemical substance.