1,3,5,7-tetrakis(sulfanylidene)-2,4,6,8,9,10-hexathia-1lambda5,3lambda5,5lambda5,7lambda5-tetraphosphatricyclo[3.3.1.13,7]decane

1,3,5,7-tetrakis(sulfanylidene)-2,4,6,8,9,10-hexathia-1lambda5,3lambda5,5lambda5,7lambda5-tetraphosphatricyclo[3.3.1.13,7]decane is a phosphorus sulfide compound with the chemical formula P4S10 and CAS number 1314-80-3. This chemical substance has a molecular weight of 444.6 g/mol and belongs to the class of inorganic phosphorus compounds. It is commonly known as phosphorus pentasulfide and represents an important industrial chemical used in various synthetic processes.

P4S10 is a solid inorganic compound that typically appears as yellow-green crystalline material at room temperature. It has a distinctive sulfur-like odor and is highly reactive with water, leading to its classification as Water-react. 1 under GHS. The compound is insoluble in water but decomposes upon contact, releasing toxic hydrogen sulfide gas. Its molecular structure consists of a cage-like arrangement of phosphorus and sulfur atoms.

P4S10 serves as an important reagent in organic synthesis, particularly for the conversion of alcohols and carbonyls to their corresponding sulfur analogs. It is widely used in the pharmaceutical industry for synthesizing organosulfur compounds and in the production of lubricant additives. Additionally, it finds applications in the manufacture of pesticides, rubber processing chemicals, and as a sulfurizing agent in various industrial processes requiring sulfur incorporation.

P4S10 requires careful handling due to its flammable solid classification and acute toxicity. Personnel must wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Keep the substance away from heat sources, sparks, and open flames. Ensure emergency shower and eyewash stations are readily accessible during handling operations.

P4S10 must be stored in a cool, dry place away from moisture and water sources due to its water-reactive nature. Use tightly sealed, moisture-proof containers in well-ventilated storage areas. Keep away from heat sources, ignition sources, and incompatible materials such as oxidizing agents and bases. Storage areas should be equipped with appropriate fire suppression systems and spill containment measures. Maintain storage temperatures below 25°C for optimal stability.

Immediate action is required upon contact with P4S10 due to its acute toxicity classification. For skin contact, remove contaminated clothing and flush affected area with plenty of water for at least 15 minutes. If inhaled, move the person to fresh air immediately and seek medical attention. For eye contact, rinse thoroughly with water for at least 15 minutes while holding eyelids open. Seek immediate medical attention for all exposure routes and never induce vomiting if ingested.

P4S10 disposal must comply with local and national hazardous waste regulations due to its classification as flammable and acutely toxic material. The substance cannot be disposed of in regular waste streams and requires specialized hazardous waste treatment facilities. Small quantities should be neutralized carefully under controlled conditions by qualified personnel. Contact licensed waste disposal companies for proper collection and treatment. Never discharge into sewers, waterways, or soil due to environmental hazards.

P4S10 is classified under ADR Class 4.3 (substances which, in contact with water, emit flammable gases) with Packing Group II, indicating moderate danger level. Transportation requires UN-approved packaging designed for water-reactive substances. Vehicles must carry appropriate hazard placards and emergency response information. Drivers need ADR certification for dangerous goods transport. Packages must be kept dry during transport and protected from moisture, rain, and temperature extremes.

P4S10 is subject to comprehensive chemical regulations including REACH registration requirements in the European Union and CLP classification obligations. The substance carries multiple GHS pictogrammes (GHS02, GHS07, GHS09) and requires safety data sheets for commercial distribution. It falls under dangerous goods transport regulations (ADR) and workplace exposure limits. While not currently listed as SVHC, it requires compliance with industrial emissions directives and environmental protection measures due to its aquatic toxicity.

P4S10 is available through OYSI, a specialized European distributor of technical chemicals serving industrial customers across the continent. OYSI provides compliant packaging, proper documentation, and regulatory support for this controlled substance. As a professional chemical distributor, OYSI ensures proper handling, storage, and transport according to ADR and REACH requirements. Contact OYSI directly for availability, technical specifications, and delivery options tailored to your industrial application requirements.