Dipotassium;sulfide

Dipotassium sulfide is an inorganic chemical compound with the molecular formula K2S and CAS number 1312-73-8. It has a molecular weight of 110.26 g/mol and belongs to the family of alkali metal sulfides. This compound is classified as a corrosive substance (Skin Corr. 1B) and poses acute aquatic toxicity hazards (Aquatic Acute 1), requiring careful handling and storage procedures in industrial applications.

Dipotassium sulfide appears as a white to yellowish crystalline solid at room temperature. It is highly hygroscopic, readily absorbing moisture from air, and exhibits excellent solubility in water, forming strongly alkaline solutions. The compound is sensitive to air and moisture, decomposing gradually when exposed to atmospheric conditions. It has a characteristic sulfide odor and demonstrates typical ionic compound properties with high melting point characteristics.

Dipotassium sulfide serves primarily as a chemical intermediate in various industrial processes. It is used in the production of other sulfur-containing compounds, as a reducing agent in metallurgical applications, and in certain specialized chemical syntheses. The compound finds applications in the preparation of sulfide-based materials and can be utilized in research laboratories for specific analytical procedures requiring sulfide ions.

Dipotassium sulfide requires strict safety protocols due to its corrosive nature (Skin Corr. 1B classification). Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and protective clothing. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Avoid contact with skin, eyes, and clothing, and ensure emergency eyewash stations and safety showers are readily accessible during handling operations.

Dipotassium sulfide must be stored in tightly sealed, moisture-proof containers away from humid conditions due to its hygroscopic nature. Keep containers in cool, dry, well-ventilated areas away from incompatible materials such as acids, oxidizing agents, and moisture sources. Storage areas should be equipped with appropriate spill containment measures and maintained at stable temperatures to prevent degradation and ensure product integrity.

Immediate action is required due to dipotassium sulfide's corrosive properties. For skin contact, immediately remove contaminated clothing and flush affected areas with copious amounts of water for at least 15 minutes. In case of eye contact, rinse thoroughly with water and seek immediate medical attention. If ingested, do not induce vomiting and seek urgent medical care. Always consult the safety data sheet for complete first aid procedures.

Dipotassium sulfide disposal must comply with local, national, and EU waste regulations due to its hazardous classification. The compound cannot be disposed of through regular waste streams and requires treatment as hazardous chemical waste. Contact authorized waste disposal companies specialized in handling corrosive and environmentally hazardous materials. Neutralization procedures should only be performed by trained professionals following established protocols for sulfide-containing compounds.

Dipotassium sulfide is classified under ADR Class 4.2 (substances liable to spontaneous combustion), Packing Group II, indicating moderate danger level during transport. Packages must comply with UN packaging requirements and bear appropriate hazard labels including GHS05 (corrosion) and GHS09 (environmental hazard) pictograms. Transportation requires proper documentation, trained personnel, and adherence to dangerous goods regulations for road transport within Europe.

Dipotassium sulfide falls under European CLP regulation requiring hazard classification and labeling with 'Danger' signal word and specific pictograms (GHS05, GHS09). The substance is not currently listed as SVHC under REACH regulation. However, its corrosive and aquatic toxicity properties subject it to standard chemical safety requirements, workplace exposure limits, and environmental protection measures mandated by EU chemical legislation.

Dipotassium sulfide is available through OYSI, a specialized European distributor of technical chemicals. As an established chemical supplier, OYSI provides this compound to industrial customers, research institutions, and professional users across Europe. Contact OYSI directly for availability, specifications, packaging options, and delivery arrangements. Ensure your application complies with regulatory requirements and that proper handling facilities are in place before ordering.