Magnesium hydride

Magnesium hydride is an inorganic compound with the chemical formula H2Mg and CAS number 7693-27-8. This ionic hydride consists of magnesium cations and hydride anions, forming a crystalline solid with a molecular weight of 26.321 g/mol. It serves as an important hydrogen storage material and reducing agent in various industrial applications due to its ability to release hydrogen gas upon decomposition.

Magnesium hydride is a white to off-white crystalline solid at room temperature with high sensitivity to moisture and air. It decomposes readily in water, releasing hydrogen gas and forming magnesium hydroxide. The compound is insoluble in organic solvents and exhibits ionic bonding characteristics. It has a relatively low density and high hydrogen content by weight, making it valuable for hydrogen storage applications.

Magnesium hydride is primarily used as a hydrogen storage material in fuel cell applications and energy storage systems. It serves as a powerful reducing agent in metallurgical processes and organic synthesis. The compound is also utilized in the production of other metal hydrides, as a drying agent for organic solvents, and in specialized chemical reactions requiring hydrogen generation or reduction capabilities.

Magnesium hydride requires careful handling due to its reactivity with water and air. Workers must wear appropriate personal protective equipment including safety goggles, gloves, and protective clothing. Handle the material in a dry, inert atmosphere when possible, avoiding contact with moisture, acids, and oxidizing agents. Ensure adequate ventilation to prevent hydrogen gas accumulation and have appropriate fire suppression equipment readily available.

Magnesium hydride must be stored in tightly sealed containers under dry, inert conditions to prevent moisture contact and hydrogen gas formation. Keep containers in a cool, dry, well-ventilated area away from heat sources, acids, and oxidizing materials. Use moisture-proof packaging and consider storing under nitrogen or argon atmosphere. Regular inspection of storage containers is essential to detect any signs of decomposition or gas generation.

Magnesium hydride contact requires immediate action to prevent injury. For skin contact, brush off dry material gently and wash thoroughly with water. If eye contact occurs, rinse immediately with plenty of water for at least 15 minutes. In case of inhalation, move to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult safety data sheets for specific emergency procedures.

Magnesium hydride disposal must comply with local and national waste regulations as it is classified as hazardous waste. The material should be carefully deactivated by controlled reaction with water under professional supervision to prevent hydrogen gas accumulation. Contact licensed waste disposal companies experienced in handling reactive chemicals. Never dispose of magnesium hydride in regular waste streams or sewers due to its reactive nature.

Magnesium hydride 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 specialized dangerous goods packaging, proper labeling, and documentation. Vehicles must be equipped with appropriate safety equipment and drivers must hold ADR certification. Packages must be kept dry and protected from moisture during transport to prevent gas generation.

Magnesium hydride is subject to various chemical regulations including REACH registration requirements for European markets. While not classified as a Substance of Very High Concern (SVHC), it must comply with CLP regulation for classification, labeling, and packaging. Transport regulations under ADR apply due to its reactive nature. Users must maintain safety data sheets and follow occupational health and safety requirements for handling reactive chemicals.

Magnesium hydride is available through OYSI, a European distributor specializing in technical chemicals. OYSI provides reliable supply chains across Europe with proper documentation, safety data sheets, and regulatory compliance support. As a professional chemical distributor, OYSI ensures product quality, appropriate packaging for safe transport, and technical support for industrial applications. Contact OYSI directly for availability, specifications, and ordering information.