Barium

Barium is a silvery-white alkaline earth metal with the chemical symbol Ba and atomic number 56. This soft, reactive metal belongs to Group 2 of the periodic table and has a molecular weight of 137.33 g/mol. Barium is highly reactive and readily oxidizes in air, forming a protective oxide layer. It occurs naturally in minerals like barite and witherite, and must be stored under inert conditions to prevent oxidation and reaction with moisture.

Barium is a soft, silvery-white metallic solid at room temperature with a density of 3.51 g/cm³. It has a melting point of 727°C and a boiling point of 1897°C. The metal tarnishes quickly in air due to oxidation and reacts vigorously with water, producing hydrogen gas and barium hydroxide. Barium is insoluble in organic solvents but reacts with acids and water, making it highly reactive and requiring careful handling.

Barium is primarily used in the production of barium compounds for various industrial applications. Key uses include manufacturing barium sulfate for drilling fluids in oil and gas exploration, producing barium carbonate for specialty glass and ceramics, and creating barium compounds for pyrotechnics and fireworks. It's also utilized in the production of certain alloys, as a getter in vacuum tubes, and in specialized chemical synthesis processes requiring strong reducing agents.

Barium must be handled with extreme caution due to its high reactivity with water and air. Essential safety measures include wearing appropriate personal protective equipment such as gloves, safety glasses, and protective clothing. Work should be conducted in well-ventilated areas or under inert atmosphere conditions. Avoid contact with water, acids, and moisture. Keep fire extinguishing equipment nearby and ensure proper training on emergency procedures before handling this reactive metal.

Barium must be stored under inert conditions to prevent oxidation and dangerous reactions. Store in airtight containers under mineral oil or inert gas atmosphere (argon or nitrogen) in a cool, dry location. Keep away from water, acids, oxidizing agents, and sources of ignition. Storage areas should be well-ventilated and equipped with appropriate fire suppression systems. Regularly inspect containers for signs of deterioration or contamination to maintain product integrity.

Immediate action is required in case of barium contact due to its reactivity. For skin contact, remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. If inhaled, move the person to fresh air immediately. In case of eye contact, flush with water for 15 minutes and remove contact lenses if present. Seek medical attention promptly for any exposure. Do not induce vomiting if ingested and contact emergency services immediately.

Barium disposal must comply with local and international hazardous waste regulations due to its reactive nature. Small quantities should be carefully neutralized by qualified personnel before disposal. Never dispose of barium in regular waste streams or pour down drains. Contact licensed hazardous waste disposal companies for proper collection and treatment. Maintain detailed disposal records and ensure compliance with REACH and national waste management regulations throughout the disposal process.

Barium is classified under ADR Class 4.3 (substances which, in contact with water, emit flammable gases), Packing Group II, indicating significant transport restrictions. Specialized packaging is required to prevent contact with moisture and ensure safe transport. Vehicles must carry appropriate hazard placards and emergency equipment. Drivers need ADR certification and training. Shipments require proper documentation including transport documents and emergency response information for regulatory compliance.

Barium is subject to various chemical regulations including REACH registration requirements for commercial use in the European Union. While not classified as an SVHC (Substance of Very High Concern), it falls under CLP regulation due to its reactive properties. Transport is regulated under ADR classification 4.3. Users must comply with occupational safety standards, environmental protection laws, and maintain appropriate safety data sheets for workplace safety and regulatory compliance.

Barium is available through specialized chemical distributors across Europe, with OYSI serving as a reliable European supplier for industrial customers. As a technical chemical requiring specialized handling and storage, barium is typically supplied to qualified industrial users with appropriate safety facilities. OYSI provides comprehensive technical support and ensures compliance with European chemical regulations. Contact OYSI directly for availability, specifications, and delivery arrangements for your barium requirements.