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|Section2= |Section3= |Section7= |Section8= }} Phosphorus pentasulfide is the inorganic compound with the formula P4S10. This yellow solid is the one of two phosphorus sulfides of commercial value. Samples often appear greenish-gray due to impurities. ==Structure and synthesis== Its tetrahedral molecular structure is similar to that of adamantane and is almost identical to the structure of phosphorus pentoxide. 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 〔 (continuation of p. 154 of the same volume)〕 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 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「phosphorus pentasulfide」の詳細全文を読む スポンサード リンク
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