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    Phosphorus Pentasulfide

    Phosphorus Pentasulfide in Tradeasia

    IUPAC Name

    Phosphorus Pentasulfide

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    Basic Info


    Greenish-Yellow Solid

    Common Names

    phosphorus sulfide, sulfur phosphide, phosphorus persulfide, diphosphorus pentasulfide, tetraphosphorus decasulfide, phosphorus decasulfide


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    Brief Overview

    Phosphorus pentasulfide is the inorganic compound with the formula P2S5 or dimer P4S10. This yellow solid is the one of two phosphorus sulfides of commercial value. Samples often appear greenish-gray due to impurities. It is soluble in carbon disulfide but reacts with many other solvents such as alcohols, DMSO, and DMF. Its tetrahedral molecular structure is similar to that of adamantane and almost identical to the structure of phosphorus pentoxide.

    Manufacturing Process

    Phosphorus pentasulfide is obtained by the reaction of liquid white phosphorus (P4) with sulfur above 300 °C. The first synthesis of P4S10 by Berzelius in 1843 [5][6] was by this method. Alternatively, P4S10 can be formed by reacting elemental sulfur or pyrite, FeS2, with ferrophosphorus, a crude form of Fe2P (a byproduct of P4 production from phosphate rock):
    4 Fe2P + 18 S → P4S10 + 8 FeS
    4 Fe2P + 18 FeS2 + heat → P4S10 + 26 FeS


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    Raw Materials 

    Raw materials used in a variety of products and industries (e.g. in cosmetics, chemical manufacturing, production of metals, etc); modifiers included when known to indicate what the raw materials are used for

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