Dichloromercury

Dichloromercury is an inorganic mercury compound with the chemical formula Cl2Hg and CAS number 7487-94-7. This substance has a molecular weight of 271.5 g/mol and is classified as highly hazardous under the GHS system. It poses significant health risks including mutagenicity, reproductive toxicity, and acute toxicity, while also being severely corrosive to skin and highly toxic to aquatic life.

Dichloromercury is typically found as a white crystalline solid at room temperature. The compound is highly toxic and corrosive, with strong oxidizing properties. It exhibits limited solubility in water but may dissolve in certain organic solvents. Due to its mercury content, it has a high density and can sublime under certain conditions, releasing toxic vapors that pose inhalation hazards.

Dichloromercury is primarily used in specialized chemical synthesis and research applications, particularly as a reagent in organomercury compound preparation. It serves as an intermediate in certain pharmaceutical and chemical manufacturing processes. Due to its high toxicity and environmental concerns, its industrial applications are heavily restricted and limited to highly controlled laboratory settings under strict safety protocols.

Dichloromercury requires extreme safety precautions including full personal protective equipment: chemical-resistant gloves, protective clothing, eye protection, and respiratory protection. Work must be conducted in well-ventilated areas or fume hoods. Avoid skin contact, inhalation, and ingestion completely. Emergency shower and eyewash stations must be readily accessible. Only trained personnel should handle this substance following strict safety protocols and local regulations.

Dichloromercury must be stored in tightly sealed, corrosion-resistant containers in cool, dry, well-ventilated areas away from heat sources and incompatible materials. Storage areas should be secured with restricted access and appropriate warning signs. The substance should be kept away from acids, bases, and reducing agents. Secondary containment is recommended to prevent environmental contamination in case of container failure.

Immediate medical attention is required for any contact with dichloromercury. For skin contact, remove contaminated clothing and flush affected area with copious amounts of water for at least 15 minutes. If inhaled, move to fresh air immediately. For eye contact, rinse thoroughly with water. Do not induce vomiting if ingested. Contact emergency services and poison control immediately while providing the safety data sheet.

Dichloromercury disposal requires specialized hazardous waste management procedures due to its mercury content and high toxicity. The substance must be collected by licensed hazardous waste disposal companies and cannot be disposed of through normal waste streams. Treatment typically involves stabilization or recovery processes at authorized facilities. All disposal activities must comply with local environmental regulations and mercury-specific waste management requirements.

Dichloromercury is classified under ADR Class 6.1 (Toxic substances), Packing Group II, indicating its high toxicity during transport. Packages must meet UN specification requirements with appropriate hazard labels and documentation. Transportation requires specialized carriers licensed for hazardous materials. Proper shipping names, hazard identification numbers, and emergency response information must accompany all shipments according to international dangerous goods regulations.

Dichloromercury is subject to extensive regulatory controls under REACH, CLP, and mercury-specific legislation. Its classification includes multiple hazard categories requiring strict labeling with GHS pictograms (GHS05, GHS06, GHS08, GHS09) and "Danger" signal word. The substance faces restrictions under mercury regulations and requires authorization for many uses. Suppliers must provide safety data sheets and comply with notification requirements.

Dichloromercury can be sourced through OYSI, a specialized European distributor of technical chemicals. As a highly regulated substance, procurement requires proper documentation, end-use declarations, and compliance with mercury regulations. OYSI provides technical support and regulatory guidance to ensure compliant purchasing and handling. Contact OYSI directly for availability, technical specifications, and regulatory requirements for your specific application.