Selanylidenecadmium

Selanylidenecadmium is an inorganic compound with the chemical formula CdSe and CAS number 1306-24-7. This binary semiconductor material consists of cadmium and selenium atoms in a 1:1 ratio, with a molecular weight of 191.38 g/mol. It belongs to the II-VI semiconductor family and exhibits unique optoelectronic properties that make it valuable in various technological applications, particularly in electronics and photonics industries.

Selanylidenecadmium is a crystalline solid at room temperature, typically appearing as dark red to black crystals or powder. It has a hexagonal crystal structure (wurtzite) or cubic structure (zinc blende) depending on synthesis conditions. The compound has a high melting point exceeding 1200°C and is practically insoluble in water. It demonstrates semiconductor properties with a direct bandgap, making it photosensitive and useful for optoelectronic applications.

Selanylidenecadmium is primarily used in semiconductor applications, particularly in the manufacture of quantum dots, solar cells, and photodetectors. It serves as a key material in thin-film photovoltaic devices and light-emitting diodes (LEDs). The compound is also utilized in infrared windows, laser components, and various optoelectronic devices due to its unique bandgap properties. Research applications include nanotechnology studies and development of advanced semiconductor materials.

Selanylidenecadmium requires careful handling due to the presence of cadmium and selenium. Always wear appropriate personal protective equipment including nitrile gloves, safety goggles, and respiratory protection when handling powder forms. Work in well-ventilated areas or under fume hoods to prevent inhalation. Avoid skin contact and ingestion. Use non-sparking tools and prevent dust generation. Wash hands thoroughly after handling and never eat, drink, or smoke in work areas.

Selanylidenecadmium should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Keep containers upright and properly labeled with hazard information. Store separately from strong acids, bases, and oxidizing agents. Maintain storage temperature below 25°C and relative humidity below 60%. Ensure storage areas are equipped with appropriate spill containment measures and access is restricted to authorized personnel only.

In case of skin contact with selanylidenecadmium, immediately remove contaminated clothing and wash affected area thoroughly with soap and water for at least 15 minutes. If eye contact occurs, flush eyes with clean water for 15 minutes while holding eyelids open. If inhaled, move person to fresh air immediately. If ingested, rinse mouth and drink water but do not induce vomiting. Seek immediate medical attention in all cases and provide safety data sheet to medical personnel.

Selanylidenecadmium must be disposed of as hazardous waste containing heavy metals through licensed waste disposal contractors. Never dispose of this material in regular trash, down drains, or into the environment. Collect waste in appropriate containers, properly labeled and segregated from other waste streams. Follow local and national regulations for hazardous waste disposal. Contact specialized waste management companies experienced in handling semiconductor materials containing cadmium and selenium compounds.

Selanylidenecadmium is classified under ADR Class 6.1 (Toxic substances), Packing Group III for transportation. It requires appropriate hazardous goods packaging, labeling, and documentation during transport. Use UN-approved packaging suitable for solid toxic materials. Ensure proper marking with UN identification numbers and hazard labels. Transport vehicles must comply with ADR requirements including appropriate placarding. Only use carriers certified for transporting hazardous materials and provide proper shipping documentation.

Selanylidenecadmium is subject to various chemical regulations due to its cadmium content. Under REACH regulation, it requires registration for import/manufacture above tonnage thresholds. The compound falls under CLP regulation for classification and labeling requirements. Cadmium compounds are restricted under Annex XVII of REACH for certain uses. National occupational exposure limits may apply. Users must comply with waste regulations and environmental permits when handling this material in industrial processes.

Selanylidenecadmium is available through OYSI, a European distributor of technical chemicals specializing in semiconductor materials and specialty compounds. OYSI provides high-quality selanylidenecadmium with proper documentation, safety data sheets, and regulatory compliance support. As experienced chemical distributors, OYSI ensures proper packaging, labeling, and transportation according to European regulations. Contact OYSI directly for availability, technical specifications, and quotations for your specific application requirements.