Strontium dioxido(dioxo)chromium

Strontium dioxido(dioxo)chromium is an inorganic chemical compound with the molecular formula CrO4Sr and CAS number 7789-06-2. This chromate salt has a molecular weight of 203.61 g/mol and consists of strontium cations combined with chromate anions. It is classified as a hazardous substance with carcinogenic properties (Category 1B) and poses significant environmental risks to aquatic life.

Strontium dioxido(dioxo)chromium is typically a crystalline solid at room temperature with characteristic yellow coloration common to chromate compounds. As an ionic compound, it exhibits moderate to good solubility in water, forming yellow solutions. The compound is stable under normal conditions but may decompose at elevated temperatures. Its molecular weight of 203.61 g/mol reflects the combined mass of strontium and chromate components.

Strontium dioxido(dioxo)chromium is primarily used in specialized industrial applications including corrosion inhibition, metal treatment processes, and as a catalyst in certain chemical reactions. It may also serve as a precursor in the synthesis of other strontium or chromium compounds. Due to its carcinogenic classification, its use is strictly regulated and limited to professional applications with appropriate safety measures and environmental controls.

Safe handling of strontium dioxido(dioxo)chromium requires comprehensive personal protective equipment including respiratory protection, chemical-resistant gloves, safety goggles, and protective clothing. Work must be conducted in well-ventilated areas or under fume extraction systems due to its carcinogenic and acute toxicity properties. Avoid skin contact, inhalation, and ingestion. Regular health monitoring of exposed workers is recommended given the compound's Category 1B carcinogenic classification.

Proper storage of strontium dioxido(dioxo)chromium requires a cool, dry, well-ventilated area away from incompatible materials and ignition sources. Containers must be tightly sealed and properly labeled with appropriate hazard warnings. Storage areas should be equipped with spill containment measures and restricted access due to the carcinogenic nature of the compound. Avoid storage near organic materials, reducing agents, and acids to prevent potential reactions.

Immediate first aid for strontium dioxido(dioxo)chromium contact includes removing contaminated clothing and flushing affected skin or eyes with copious amounts of water for at least 15 minutes. If inhaled, move the person to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention. Given the compound's carcinogenic properties, all exposures should be documented and medical evaluation sought promptly, even for minor contact incidents.

Proper disposal of strontium dioxido(dioxo)chromium must comply with local and international hazardous waste regulations due to its carcinogenic and environmentally hazardous classification. The compound cannot be disposed of through regular waste streams and requires specialized hazardous waste treatment facilities. Disposal must be arranged through licensed waste management companies capable of handling chromium-containing carcinogenic materials with appropriate environmental protection measures.

Transportation of strontium dioxido(dioxo)chromium is regulated under ADR Class 6.1 (Toxic substances) with Packing Group II classification. Proper shipping names, hazard labels, and documentation must accompany shipments. Packaging must meet UN specification requirements for toxic substances, and vehicles must carry appropriate emergency response information. Drivers require ADR certification for Class 6.1 materials, and specific routing restrictions may apply in populated areas.

Strontium dioxido(dioxo)chromium is subject to comprehensive regulation under REACH and CLP regulations in Europe due to its carcinogenic properties and environmental hazards. While not currently classified as a Substance of Very High Concern (SVHC), its Category 1B carcinogenic classification imposes strict workplace exposure limits and requires extensive risk management measures. Users must comply with occupational health regulations and environmental protection requirements.

Strontium dioxido(dioxo)chromium is available through OYSI, a specialized European distributor of technical chemicals. As a regulated carcinogenic substance, purchase requires verification of legitimate industrial use and compliance with safety regulations. OYSI provides proper documentation, safety data sheets, and ensures compliant packaging and transportation. Due to regulatory requirements, availability may be restricted to qualified industrial users with appropriate handling capabilities and safety measures.