Magnesium hexafluorosilicon(2-)

Magnesium hexafluorosilicon(2-) is an inorganic chemical compound with the molecular formula F6MgSi and CAS number 16949-65-8. This substance has a molecular weight of 166.38 g/mol and is classified as a toxic material under safety regulations. It belongs to the hexafluorosilicate family of compounds, where magnesium serves as the cationic component paired with the hexafluorosilicate anion. The compound is regulated as an acute toxicity hazard class 3 substance, requiring careful handling and appropriate safety measures during use.

Magnesium hexafluorosilicon(2-) is typically found as a crystalline solid at room temperature with a molecular weight of 166.38 g/mol. As a fluorosilicate compound, it generally exhibits good water solubility, forming clear solutions when dissolved. The compound is odorless and appears as white or colorless crystals. Being an ionic compound containing fluorine atoms, it demonstrates stability under normal conditions but may release hydrogen fluoride when exposed to strong acids or elevated temperatures, which contributes to its toxicity profile.

Magnesium hexafluorosilicon(2-) is primarily used in specialized industrial applications including metal surface treatment processes, ceramic manufacturing, and as a fluorinating agent in chemical synthesis. It serves as an intermediate in the production of other fluorine-containing compounds and may be utilized in glass etching applications. The compound finds use in research and development activities, particularly in materials science and inorganic chemistry. Due to its toxic classification, its applications are restricted to professional and industrial settings where appropriate safety measures can be implemented.

Magnesium hexafluorosilicon(2-) requires careful handling due to its Acute Tox. 3 classification and GHS06 pictogram designation. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and appropriate respiratory protection when handling powders or in poorly ventilated areas. Work should be conducted in well-ventilated areas or under fume extraction systems. Avoid skin and eye contact, and prevent inhalation of dust or vapors. Use non-sparking tools and ensure proper grounding when transferring the material. Emergency eyewash and shower facilities should be readily accessible in work areas.

Magnesium hexafluorosilicon(2-) should be stored in tightly sealed, corrosion-resistant containers in a cool, dry, well-ventilated area away from incompatible materials. Keep containers away from heat sources, direct sunlight, and moisture to prevent decomposition. Storage areas must be equipped with appropriate spill containment measures and restricted to authorized personnel only. The compound should be separated from strong acids, alkalis, and reducing agents. Ensure storage facilities comply with local chemical storage regulations and maintain proper labeling with hazard identification consistent with the GHS06 pictogram and danger signal word.

In case of skin contact with magnesium hexafluorosilicon(2-), immediately remove contaminated clothing and flush the affected area with copious amounts of water for at least 15 minutes. For eye contact, rinse immediately with clean water for at least 15 minutes while holding eyelids open. If inhaled, move the person to fresh air and seek medical attention if breathing difficulties occur. In case of ingestion, do not induce vomiting and seek immediate medical attention. Due to the acute toxicity classification, medical consultation is recommended for any significant exposure. Keep safety data sheets readily available for emergency responders.

Magnesium hexafluorosilicon(2-) disposal must comply with local, national, and European waste regulations due to its toxic classification. The compound cannot be disposed of through normal waste streams and requires treatment as hazardous chemical waste. Contact licensed hazardous waste disposal companies for proper collection and treatment. Small quantities may require neutralization under controlled conditions before disposal, but this should only be performed by trained professionals. Containers must be properly labeled and documented throughout the disposal process. Never discharge this material into sewers, waterways, or soil due to environmental and toxicity concerns.

Magnesium hexafluorosilicon(2-) is classified under ADR class 6.1 (toxic substances) packing group III for transport purposes. This classification requires specific packaging, labeling, and documentation according to dangerous goods regulations. Packages must display appropriate hazard labels and be constructed to prevent leakage during transport. Transport vehicles must carry proper placarding and emergency response information. Drivers require ADR certification for class 6.1 materials. Shipments must include transport documents specifying the UN number, proper shipping name, hazard class, and packing group. Air transport may have additional restrictions under IATA regulations.

Magnesium hexafluorosilicon(2-) is subject to European REACH regulation requiring registration for commercial use and CLP regulation for classification and labeling as Acute Tox. 3 with danger signal word. The substance is not currently listed as an SVHC (Substance of Very High Concern) under REACH. National occupational exposure limits may apply in workplace settings. Import and export may require notifications under PIC regulation depending on quantities and destinations. Users must maintain safety data sheets, conduct risk assessments, and implement appropriate risk management measures. Professional users must comply with worker protection legislation and environmental discharge restrictions.

Magnesium hexafluorosilicon(2-) is available through OYSI, a European distributor specializing in technical chemical products. As a regulated toxic substance, purchases are typically restricted to qualified industrial users, research institutions, and licensed chemical companies with appropriate handling capabilities. Buyers must demonstrate legitimate use and proper safety infrastructure. OYSI can provide technical support, safety documentation, and ensure compliance with European chemical regulations. Contact OYSI directly for availability, specifications, and technical data sheets. Due to transport classification ADR 6.1, special shipping arrangements may be required depending on quantity and destination.