Zinc dicyanide

Zinc dicyanide is an inorganic chemical compound with the molecular formula C2N2Zn and CAS number 557-21-1. It has a molecular weight of 117.4 g/mol and belongs to the family of metal cyanides. This substance is classified as highly toxic and environmentally hazardous, requiring careful handling and storage. Due to its cyanide content, it poses significant health risks and is subject to strict regulatory controls in industrial applications.

Zinc dicyanide typically appears as a white to off-white crystalline powder or solid. It is sparingly soluble in water but may decompose in acidic conditions, potentially releasing toxic hydrogen cyanide gas. The compound is stable under normal conditions but should be kept away from acids and strong oxidizing agents. Its molecular structure consists of zinc ions coordinated with cyanide groups, contributing to its toxic properties and environmental persistence.

Zinc dicyanide is primarily used in specialized industrial applications including metal plating processes, particularly in electroplating operations where zinc coatings are required. It may also serve as an intermediate in the synthesis of other chemical compounds or as a catalyst in specific organic reactions. Due to its high toxicity and environmental hazards, its use is restricted to professional industrial settings with appropriate safety measures and regulatory compliance.

Zinc dicyanide must be handled with extreme caution using appropriate personal protective equipment including respiratory protection, chemical-resistant gloves, and protective clothing. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Avoid contact with acids which can generate toxic hydrogen cyanide gas. Only trained personnel should handle this substance, and emergency procedures should be readily available due to its Acute Tox. 1 and 2 classifications.

Zinc dicyanide should be stored in a cool, dry, well-ventilated area away from incompatible materials, particularly acids and strong oxidizing agents. Containers must be tightly sealed and properly labeled according to GHS requirements with GHS06 and GHS09 pictograms. Storage areas should be secure, accessible only to authorized personnel, and equipped with appropriate spill containment measures. Regular inventory checks and container integrity inspections are essential for safe storage management.

Immediate action is required in case of contact with zinc dicyanide due to its high toxicity. For skin contact, remove contaminated clothing and wash thoroughly with water for at least 15 minutes. If inhaled, move to fresh air immediately and seek medical attention. In case of eye contact, flush with water for at least 15 minutes. For ingestion, do not induce vomiting and seek immediate medical help. Always contact emergency services and poison control centers promptly.

Zinc dicyanide must be disposed of as hazardous waste through licensed waste management companies specializing in toxic and cyanide-containing materials. It cannot be disposed of in regular waste streams or sewage systems due to its environmental hazard classification (Aquatic Acute 1, Aquatic Chronic 1). Disposal must comply with local and European waste regulations, including proper documentation and tracking. Contact authorized waste disposal contractors for specific treatment and destruction methods.

Zinc dicyanide is classified as ADR Class 6.1 (toxic substances), Packing Group I, indicating high toxicity requiring the most stringent transport conditions. It must be packaged in UN-approved containers with proper labeling and documentation. Transport vehicles must carry appropriate emergency equipment and drivers need ADR certification. Only authorized carriers experienced in handling toxic materials should transport this substance, following all applicable dangerous goods regulations.

Zinc dicyanide is subject to extensive regulatory oversight under European REACH and CLP regulations due to its high toxicity and environmental hazards. It requires safety data sheets, hazard classification labeling with 'Danger' signal word, and may be subject to authorization or restriction procedures. Users must comply with occupational exposure limits, environmental discharge restrictions, and reporting requirements. Industrial users may need specific permits and must implement risk management measures.

Zinc dicyanide is available through OYSI, a specialized European distributor of technical chemicals with expertise in hazardous materials. As a restricted substance requiring professional handling, it is only supplied to qualified industrial users with appropriate licenses and safety protocols. OYSI provides comprehensive technical support, regulatory compliance documentation, and safe packaging for this highly toxic material. Contact OYSI directly to discuss specific requirements and availability.