五硫化二磷
英文名稱： phosphorus pentasulfide
別 名： 五硫化磷
國標(biāo)編號： 43041
CAS號： 1314-80-3
分子式：P4S10
外觀與性狀：灰色到黃綠色結(jié)晶，有似硫化氫的氣味
分子量：222.27
蒸汽壓：0.13kPa(300℃)
熔 點：276℃
沸點：514℃
溶解性：微溶于二硫化碳，溶于氫氧化鈉水溶液
密度：相對密度(水=1)2.03
危險標(biāo)記：8(易燃固體)，10(遇濕易燃物品) 
用途：制造潤滑油添加劑的中間體，也用于制造殺蟲劑和浮選劑.五硫化二磷是農(nóng)藥合成的重要原料，與醇反應(yīng)，得到重要的含磷中間體“硫化物”，可進而合成多種二硫代磷酸酯類農(nóng)藥，如樂果、***、***等；由“硫化物”氯化，得到另一類重要的含磷中間體“氯化物”，又可合成多種硫代磷酸酯類農(nóng)藥，如***、辛硫磷、二嗪磷等，此外，還用作有色金屬選礦劑、潤滑油添加劑等，以及用于火柴制造、醫(yī)藥制品和橡膠硫化輔助劑等。

Phosphorus pentasulfide
English name: phosphorus pentasulfide
Other name: phosphorus pentasulfide
Gb no. : 43041
CAS no. : 1314-80-3
Molecular formula: P4S10
Appearance and properties: grayish to greenish-yellow crystals with a hydrogen sulphide odor
Molecular weight: 222.27
Vapor pressure: 0.13kpa (300℃)
Melting point: 276 ℃
Boiling point: 514 ℃
Solubility: slightly soluble in carbon disulfide, soluble in sodium hydroxide solution
Density: relative density (water =1)2.03
Hazard marks: 8(flammable solid), 10(flammable when wet)
Application: as an intermediate for the manufacture of lubricating oil additives, phosphorus pentasulfide is also used for the manufacture of pesticides and flotation agents. Phosphorus pentasulfide is an important raw material for the synthesis of pesticides. From the chlorination of "sulfide", another important phosphorous intermediate "chloride" can be obtained, and a variety of thiophosphate pesticides can be synthesized, such as ***, thiophosphate, diazinophosphate, etc. In addition, it is also used as a non-ferrous metal ore dressing agent, lubricating oil additive, as well as for the manufacture of matches, pharmaceutical products and rubber vulcanization auxiliary agent.