实验室贮存红磷的试剂瓶中往往有一层水 ,这是为什么呢 ?1　红磷中含有少量白磷 ,白磷性质活泼 ,在空气中极易氧化生成Ｐ4Ｏ6和Ｐ4Ｏ10 。 (中学教材中简写成Ｐ2 Ｏ3 和Ｐ2 Ｏ5 ,实际上根据蒸气密度测定Ｐ2 Ｏ3 分子式应为Ｐ4Ｏ6、Ｐ2 Ｏ5分子式应为Ｐ4Ｏ10 )。2　红磷与空气长 There is often a layer of water in the reagent bottles that store red phosphorus in the laboratory. Why? ?1 The red phosphorus contains a small amount of white phosphorus, which is white and phosphorus is very active and easily oxidized in the air to produce P4O6 and P4O10. (In high school textbooks, P2O3 and P2O5 are abbreviated. In fact, the P2O3 molecular formula based on vapor density should be P4O6, and the P2O5 molecular formula should be P4O10). 2 Red phosphorus and air