磷及其无机化合物在工业上,军事上用途广泛。磷有四种异构体,其中黄磷的毒性大,红磷毒性较小,紫磷及黑磷非常少见,毒性也小。磷的氯化物与氧化物,如五氧化磷,三氯氧磷及五氧化二磷等具有类似刺激性气体的性质,硫化磷毒性低,但其粉尘与烟尘对皮肤、粘膜也有刺激作用。 Phosphorus and its inorganic compounds are widely used in industry and military. There are four phosphorus isomers, of which the toxicity of yellow phosphorus, red phosphorus toxicity is small, purple phosphorus and black phosphorus is very rare, toxicity is also small. Phosphorus chloride and oxides, such as phosphorus pentoxide, phosphorus oxychloride and phosphorus pentoxide and other similar irritating gas properties, low toxicity of sulfide phosphorus, but the dust and smoke on the skin, mucous membranes also stimulate the role.