Tricalcium diarsorate

Tricalcium diarsorate is an inorganic arsenic compound with the chemical formula As2Ca3O8 and CAS number 7778-44-1. This compound has a molecular weight of 398.07 g/mol and contains both calcium and arsenic in its structure. It is classified as a hazardous material for transportation purposes under ADR Class 6.1, Group II, indicating its toxic properties. The compound is not currently listed as a Substance of Very High Concern (SVHC) under REACH regulation.

Tricalcium diarsorate is a solid inorganic compound at room temperature with the molecular formula As2Ca3O8. As an arsenic-containing calcium salt, it typically appears as a crystalline solid. The compound has a molecular weight of 398.07 g/mol. Like many inorganic arsenates, it is expected to have limited solubility in water. Specific physical properties such as melting point, density, and exact appearance may vary depending on the preparation method and purity grade.

Tricalcium diarsorate is primarily used in specialized industrial applications where arsenic compounds are required. Common applications include use as a catalyst in certain chemical processes, as an intermediate in the synthesis of other arsenic compounds, and in specialized research applications. Due to its toxic nature, its use is typically restricted to professional industrial settings with appropriate safety measures. The compound may also find applications in materials science research and specialized analytical chemistry procedures.

Tricalcium diarsorate must be handled with extreme caution due to its classification under ADR Class 6.1, Group II as a toxic substance. Always wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Work in well-ventilated areas or use local exhaust ventilation. Avoid inhalation, skin contact, and ingestion. Wash hands thoroughly after handling. Ensure emergency procedures are in place and personnel are trained in arsenic compound safety protocols before use.

Tricalcium diarsorate should be stored in a cool, dry, well-ventilated area away from incompatible materials. Keep containers tightly sealed and properly labeled according to regulations. Store away from food, beverages, and animal feed. Ensure storage areas have appropriate containment measures for spills. Access should be restricted to trained personnel only. Maintain an inventory system and regular inspection schedule. Storage facilities should comply with local regulations for toxic substances and have appropriate emergency response equipment readily available.

In case of skin contact with tricalcium diarsorate, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. If inhaled, move the person to fresh air immediately and seek medical attention. In case of eye contact, flush eyes with clean water for at least 15 minutes. If ingested, do not induce vomiting and seek immediate medical attention. Always consult a physician and provide the safety data sheet. Due to arsenic toxicity, medical evaluation is recommended for any exposure.

Tricalcium diarsorate must be disposed of as hazardous waste in accordance with local, national, and EU regulations due to its arsenic content. Contact licensed hazardous waste disposal companies for proper collection and treatment. Never dispose of this compound in regular waste streams, sewers, or the environment. Contaminated packaging materials should also be treated as hazardous waste. Maintain proper documentation of disposal activities as required by regulations. Consider waste minimization strategies and recovery options where technically and economically feasible.

Tricalcium diarsorate is classified under ADR Class 6.1, Group II for transportation, identifying it as a toxic substance. It requires appropriate UN specification packaging and proper hazard labeling during transport. Shipping documentation must include the correct technical name, UN number, and hazard class. Vehicles must comply with ADR requirements for toxic substances. Drivers need appropriate training and certification. Emergency response information must be available during transport. Consult current ADR regulations for specific packaging, labeling, and documentation requirements.

Tricalcium diarsorate is subject to various European and national regulations due to its arsenic content. Under REACH regulation, it requires registration for manufacture or import above certain tonnage thresholds. CLP regulation applies for classification and labeling requirements. National restrictions may apply for use, sale, or distribution. Occupational exposure limits for arsenic compounds must be observed. Environmental discharge regulations apply. Export/import controls may be relevant depending on destination countries. Always consult current regulatory databases and legal counsel for compliance requirements.

Tricalcium diarsorate is available through OYSI, a specialized European distributor of technical chemicals. As a professional chemical distributor, OYSI can provide this compound to qualified industrial customers with appropriate handling capabilities and regulatory compliance. Due to the toxic nature of this arsenic compound, purchases are typically restricted to legitimate industrial users with proper safety and waste management systems. Contact OYSI directly to discuss availability, specifications, and regulatory requirements for your specific application and location.