五硫化二磷

五硫化二磷
英文名称： phosphorus pentasulfide
别 名： 五硫化磷
国标编号： 43041
CAS号： 1314-80-3
分子式：P4S10
外观与性状：灰色到黄绿色结晶，有似硫化氢的气味
分子量：222.27
蒸汽压：0.13kPa(300℃)
熔 点：276℃
沸点：514℃
溶解性：微溶于二硫化碳，溶于氢氧化钠水溶液
密度：相对密度(水=1)2.03
危险标记：8(易燃固体)，10(遇湿易燃物品) 
用途：制造润滑油添加剂的中间体，也用于制造杀虫剂和浮选剂.五硫化二磷是农药合成的重要原料，与醇反应，得到重要的含磷中间体“硫化物”，可进而合成多种二硫代磷酸酯类农药，如乐果、***、***等；由“硫化物”氯化，得到另一类重要的含磷中间体“氯化物”，又可合成多种硫代磷酸酯类农药，如***、辛硫磷、二嗪磷等，此外，还用作有色金属选矿剂、润滑油添加剂等，以及用于火柴制造、医药制品和橡胶硫化辅助剂等。

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.